Margot Robbie began training six months prior to shooting Suicide Squad (2016). Her training routine included gymnastics, boxing, weapons training, aerial silk training, and learning to hold her breath underwater for extended periods of time.

The helicopter crash scene was the last to be shot, just in case any of the cast members got injured, which would delay filming.

Margot Robbie revealed at San Diego Comic-Con International 2016 that although the cast members of the squad had extensive rehearsals together, she and Jared Leto did not rehearse prior to filming their scenes. She and director David Ayer felt it added to the unpredictability and madness of Harley Quinn and The Joker.

The majority of the cast and crew got the tattoo "SKWAD" in honor of this film. The tattoos were even applied by some of the cast members, Margot Robbie and Will Smith.

Tom Hardy was originally cast as Rick Flag, but dropped out to do The Revenant (2015). Hardy had previously played Bane in The Dark Knight Rises (2012), who was a former member of the Suicide Squad in the comic books. Hardy later expressed his regret at leaving the role, given that he did not want to lose the work.

To prepare for his role as Deadshot, Will Smith shaved his head, and spent time training with Navy S.E.A.L.s and Army Rangers, practicing firing a Glock 9mm handgun and an AR-15 rifle. Smith turned out to be a quick learner, particularly with long distance shots using the AR-15.

When perfecting the Joker's laugh, Jared Leto publicly tried different laughs in New York City and Toronto to see which ones made people the most uncomfortable.

Ryan Gosling was sought out first for the role of The Joker. He reportedly turned down the role because he did not want to sign on for a multi-picture deal that the studio was requiring.

Jared Leto shaved his eyebrows in order to play The Joker, to make him look more deranged and psychotic. Jay Hernandez, who plays El Diablo, also shaved his eyebrows for his role, since his character was designed to have no hair on his body. For Hernandez, the choice saved him half an hour a day in the make-up chair.

Jared Leto got so immersed in playing The Joker that he wouldn't break out of character on set even when he wasn't filming. He even sent his fellow cast members "Joker-like" presents: a live rat to Margot Robbie, and bullets to Will Smith, a soiled Playboy magazine to Adewale Akinnuoye-Agbaje, and a dead hog, anal beads, and used condoms for the whole crew. Scott Eastwood commented that Leto frightened him at times with his behavior, and Smith mentioned that he actually never met the real Leto.

Margot Robbie kept the live rat that Jared Leto sent her and she even gave it a name; "Rat-Rat", she added "If Harley got something from Joker, she'd probably cherish it", she told E! Magazine.

Margot Robbie did the majority of her own stunts. Writer and Director David Ayer stated her stunt double spent more time sitting around in the trailers than actually performing stunts because Robbie wanted to do them herself.

It took the make-up team five hours for the prosthetic make-up to be applied to Adewale Akinnuoye-Agbaje, with the make-up applied to his head and shoulders, while the rest was body paint.

In May 2016, Warner Bros. announced Margot Robbie would reprise her role as Harley Quinn in an upcoming Gotham City Sirens movie, which she would also produce.

Harley Quinn wields an umbrella that is red and black, which is the original color scheme for her outfit from Batman: The Animated Series (1992), which is seen in the film during Harley Quinn's back story where she and the Joker are dancing. She also wields a baseball bat, her trademark weapon from the "Batman: Arkham" video games.

Jared Leto chose not to re-watch the performance given by Heath Ledger in The Dark Knight (2008) because he felt he needed to form his own version of the character. He did not want to copy or lift material from any previous film version. Instead, he focused more on the comic book versions of the iconic villain.

The Joker's car, the Jokermobile, is a customized based on a Infiniti G35 Vaydor [V35].

Early cuts of the film included more interaction with Captain Boomerang and Harley Quinn, with Harley severely disliking him despite growing affectionate to all the other members of the squad.

Adewale Akinnuoye-Agbaje did extensive research for Killer Croc, reading decades worth of material from the comics with the character. He also observed actual crocodiles and researched cannibalism.

After renowned writer and director Kevin Smith received Harley Quinn's bat he gave it to his daughter, Harley Quinn Smith.

The Ace Chemicals scene where Joker finishes Harley's transformation was initially longer in the original cut, with Harley jumping into the chemicals and with more bits of dialogue from Joker.

The baseball bat used by Harley Quinn was given to Kevin Smith as a "thank you" for hosting Dawn of the Justice League (2016).

When Harley smashes a storefront window to steal a purse, the shirts on display in the window read "SI VIS PACEM PARA BELLUM" which in Latin reads "If you want peace, prepare for war."

Jared Leto visited New York Comic Con 2015 in disguise, and took a picture with an unsuspecting fan cosplaying The Joker.

Many of Joker's scenes were omitted from the final cut.

David Ayer revealed in a Q&A on Twitter that King Shark was originally going to appear in the film, but would only have been possible as a fully CGI character. His replacement, Killer Croc, is portrayed practically with make-up and prosthetics. King Shark, or Nanaue, would feature as a CGI character in the movie's successor, The Suicide Squad (2021).

Jared Leto took inspiration from the Batman comic "Arkham Asylum: A Serious House on Serious Earth," which portrayed The Joker as a transcendent, unsettling, and seductive person. He also cites gospel music, shamans, and Mexican cartels as an influence on the character.

The Joker's various clothes in this film are based on the clothes he wore in the Batman comics. The tuxedo and white gloves come from The Killing Joke (1988) and Death in the Family (1988), the white coat and purple shirt comes from Dark Knight Returns (1986), The Joker's brown waistcoat comes from Joker (2008).

Will Smith had lengthy talks with David Ayer about his nasty past experiences, fears, and frustrations, in order to get to the core of his character, Deadshot. He later found that Ayer recalled some of these to him during filming, in order to get Smith into the right frame of mind.

Viola Davis read M.E. Thomas' autobiography "Confessions of a Sociopath" to prepare for her role as Amanda Waller.

The strip club that Harley Quinn dances in is The Joker's establishment, Smile and Grin.

A bar scene with Harley taking everyone's orders was featured in several trailers but was edited for the theatrical release. In the scene, Deadshot calls for a shot, Katana wants whiskey, Croc and Boomerang settle for beer, Harley asks what Diablo wants, and he prefers water which she jokes, "is a good idea". In the finished film, it cuts directly to speech about them all almost pulling the mission off. It is added into the extended cut of the film, with extra dialogue from Deadshot and Diablo.

Waylon Jones, a.k.a. Killer Croc has only eight lines of dialogue in the movie, totaling sixty-four words.

The Batmobile chase scene with Batman pursuing Harley Quinn and Joker was originally longer, with more interaction between Joker and Harley. One of the examples, presented in all the trailers, is the Joker punching the roof of his car.

Part of this film is set in Midway City. In the DC Comics, this was the home of the superhero couple Hawkman and Hawkgirl.

While reading the comic books in preparation to direct the film, David Ayer had Margot Robbie in mind for the role of Harley Quinn. However, Emma Roberts was offered the role by Warner Bros., but she turned it down to star in Scream Queens (2015). Olivia Thirlby, Imogen Poots, Alison Brie, Rooney Mara, Olivia Wilde, Emma Watson, Emily Browning, Zooey Deschanel, Lily Collins, Mary Elizabeth Winstead, Sara Paxton, Amanda Seyfried, and Evan Rachel Wood were also considered for the role of Harley Quinn.

David Ayer cast Cara Delevingne before there was a script. He asked her to prepare for her role as Enchantress by stripping naked in the woods, preferably underneath a full moon, and walking in the mud at night. She reportedly did so, on the secluded compound of her sister's mansion, for some much-needed privacy.

The Enchantress is the name of villainous characters in both DC and Marvel Comics, who coincidentally both wield magic and are clothed in green. The Enchantress of Marvel is a rival of Thor, while DC's is not primarily an antagonist on any one hero. In this film, she has been completely re-designed in order to look unique.

Margot Robbie spent over three hours in the make-up chair to be transformed into Harley Quinn. She had to have her skin painted white, apply twenty temporary tattoos, apply Harley Quinn's wig, and get into costume.

Cara Delevingne uses an American accent to play Dr. June Moone, but in order to play her dark side (the Enchantress), she used her natural English accent.

When asked how the Joker would relate to Batman, Jared Leto said in an interview "From the Joker's point of view, Batman is a sweet guy, but he's not that scary. He's almost like my friend".

Jared Leto said in an interview about acting alongside Margot Robbie: "Margot is very easy to have chemistry with. She's incredibly talented and very sweet and a great actress. The perfect partner for me and The Joker."

Just like his preparation to portray Rayon in Dallas Buyers Club (2013), Jared Leto shaved his entire body (except his head) to play the Joker.

Within three weeks of the teaser trailer being released, it racked up more views than both Batman v Superman: Dawn of Justice (2016) trailers.

Joker tells Harley that he has some grape soda waiting for her. Harley drank grape soda in one of her most famous comic books, Paul Dini's Mad Love, as she waited for Batman to wake up to kill him.

Jai Courtney was reported as saying, "I'll never be in a comic book movie." He changed his mind after finding out David Ayer was to direct and produce this film.

Although she has prior martial arts experience with a brown striped belt in karate, Karen Fukuhara trained alongside her castmates during about two months of pre-production, in order to learn how to wield a sword correctly.

Cara Delevingne auditioned for the role of Enchantress by reading for Martha from Edward Albee's play "Who's Afraid Of Virginia Woolf?" She was asked to read the part in several different ways, in order to reflect June Moone's split personality. By the end of the audition, she was ready to beat people up: "David Ayer sparked a fury in me, you got to come get me out of jail because I was so furious!"

Killer Croc is based on his original debut appearance in the 80s (an aspiring criminal kingpin) and his appearance in the "Joker" comic (a huge black man with a skin condition who indulges in cannibalism).

On Joker and Harley's relationship, Jared Leto said, "I think people do crazy things when they're in love, and I think the Joker is. I don't know if you could call it love, but it's something similar. I think that Harley is a trophy for the Joker. Something he can possess, and it's exciting for him to think about this creature that he helped create, being by his side as he dominates the world."

Karen Fukuhara (Katana) revealed for her audition "I remember the room wasn't very big, and they had big photo lights on either side of me. During my sword-fighting portion of the audition, I tried to calculate my arm's length and the sword's length so I wouldn't hit those things. But it was cutting it really close, and when you're in the zone, you can't really be careful because you're going all out. I hit one of the lights, and I remember hearing the casting director and David gasp. But I just kept going with it, and I think that's what David liked, that I didn't stop in the middle."

It took three hours each day to apply the tattoos and make-up to Jared Leto for the Joker.

Jared Leto tore his labrum (a piece of fibrocartilage (rubbery tissue) attached to the rim of the shoulder socket that helps keep the ball of the joint in place) while performing a stunt for this film.

Belle Reve Penetentiary is the headquarters of the Suicide Squad. "Belle Reve" is misspelled French for "beautiful dream."

Some of Katana's soul taker scenes, some of which were present in the trailers, with her eyes blackening as she uses her blade, didn't make it into the final cut.

Writer Paul Dini, who created Harley Quinn in Batman: The Animated Series (1992), said he found her look optimistic and promising.

Margot Robbie celebrated her twenty-fifth birthday on the set in her Harley Quinn costume with her own birthday cake which she posted on her Instagram and Twitter account.

David Ayer described this film as a "comic book version of The Dirty Dozen (1967)."

The first DC Extended Universe film to win an Oscar. It won for Best Make-up and Hairstyle Design.

Margot Robbie said about playing Harley Quinn, "I guess it's intimidating, because there's obviously a lot of people I want to please, and a character I have to do justice, but it's a challenge. I'm definitely up for it, and hopefully I don't disappoint." She also added, "To me, there's always two characters. There's Harleen Quinzel, and there's Harley Quinn. There are moments where Harleen takes over, and that's when she can be rational, and then Harley takes over, and that's the more erratic side."

Scenes of El Diablo that were removed from the final cut include him observing the flame of a lit match, before putting it out due to his vow to no longer use his powers and being escorted to a training center by being placed in a tube that fills with water to quell his flames, and then unceremoniously dropped onto the ground.

The mercenary Deathstroke briefly had an appearance in this film, and Joe Manganiello was considered for the role. He is slated to appear in The Batman (2022).

The first trailer for this film shown at Comic Con 2015, featured a cover version of The Bee Gees's classic "I Started A Joke". This version was specifically produced for that preview by trailer music company Confidential Music (with vocals by Becky Hanson), and made quite an impact with audiences. A modified version of that arrangement is included on the official soundtrack album (which is remarkable as such cover versions created only for promotional material are normally not released to the public).

In a recent interview, Margot Robbie revealed that she received multiple death threats for taking on the role of Harley Quinn in Suicide Squad. The actress wishes that somebody would have taken her aside to clue her in on the risks of taking on such a massive role. Robbie had to learn as she navigated her new-found success, which includes learning the price of a background check for a person that just threatened her life. She had this to say. "You're about to be in a comic book film; now here's the worst-case scenario of how big and scary it can get. There's just all this stuff you learn along the way, like, when you get those death threats, it's (smart) to have a security team do a background check on whoever sent them to see if there is any past history of violence because you'll need to know whether you need security to go to certain events. And every time you do a background check, it's going to cost $2,000, so take that into consideration when you're getting yourself into this ,and it's like, 'OK, that's a different kind of career.' Because then you need to always do a job that can financially support that lifestyle. You can't just do indie films for the rest of your life because that film back there changed everything and now you have to be able to afford security. I just wish someone had explained a lot of those things to me early on. I wouldn't have resented the position I found myself in because I would've known what I was getting myself into."

This film takes place after the events of Batman v Superman: Dawn of Justice (2016).

Filmed in Toronto, Ontario in June 2015 under the code name "Bravo 14."

Oprah Winfrey, Viola Davis, Kerry Washington, and Octavia Spencer were all front runners for the role of Amanda Waller before Davis was cast.

David Ayer penned an open letter in January 2017 in response to a fan's enthusiasm for the film. "I know it's a controversial film, I really tried to make something different, with a look and a voice of its own. I took inspiration from the insanity of the original comics. Making a movie is a journey, not a straight line. I learned so much. People want what they want, and everyone has a personal vision of how each character should look and walk and talk. If you set out to make a mass appeal movie, it's easy to end up with vanilla. But I went for it. And I know Squad has its flaws, Hell, the World knows it. Nothing hurts more than to pick up a newspaper and see a couple years of your blood, sweat and tears ripped to shreds. The hate game is strong out there. The movie was wildly successful commercially. And the World got introduced into some very cool characters in the DC Universe. And that success is due exactly to the wonder and power of DC, of its characters. Would I do a lot of things different? Yep, for sure. Wish I had a time machine. I'd make Joker the main villain and engineer a more grounded story. I have to take the good and bad and learn from it. I love making movies and I love DC. I'm a High School dropout and used to paint houses for a living. I'm lucky to have the job I have. I have to give the characters the stories and plots they deserve next time. Real talk. (And no, there isn't a secret edit of the film with a bunch of Joker scenes hidden in a salt mine somewhere.)"

In an interview, David Ayer said that in this film, a different side of Batman can be seen, as he is shown from a villain's perspective.

Harley's choker necklace has the word "Puddin" written on it. This is one of the many pet names she has always used when speaking to The Joker.

To prepare for his role as the Joker, Jared Leto watched hours of real crime footage on YouTube until he couldn't watch anymore. His reasoning was to understand how calm and deliberate a criminal can be and apply that to the character.

The John F. Ostrander Federal Building was named after Suicide Squad creator John Ostrander.

Scenes of Rick Flag and June Moone's romantic relationship, including him reading the files of the Suicide Squad recruits after Waller delivers them to him and a scene of Flag and Moone out on a date, were removed from the final cut.

Arkham Asylum's gates in the movie are identical to the ones from the television show Gotham (2014).

Mark Hamill, voice of the Joker in several cartoons, has said that he liked Jared Leto's interpretation of the character.

In early cuts of the film, its opening detailed June Moone's possession by Enchantress in real time. Re-shoots reshuffled the scene to be later in the movie in flashback form, in favor of a new opening centered on Deadshot in the prison cell, watching the rain fall and thinking about his daughter.

Leonardo DiCaprio, Brad Pitt, Daniel Craig, Matthew McConaughey, Johnny Depp, Colin Farrell, Keanu Reeves, Oscar Isaac, Jason Statham, Idris Elba, Matt Damon, Joseph Gordon-Levitt, Alexander Skarsgård, Ewan McGregor, Robert Pattinson, Michael Fassbender, Joel Kinnaman, and Jon Hamm were considered for the role of Deadshot. Kinnaman would later be cast as Rick Flag.

Vixen, Multiplex, and Mindboggler were added in the film's original script before being cut.

Following the success of the movie's first wide-release trailer, which featured Bohemian Rhapsody by Queen, its editors, Trailer Park, Inc., were invited to produce a cut of the movie. Their new music-heavy version was tested against director David Ayer's own cut, which was created after massive re-shoots. Ayer claimed that contrary to the popular belief that test audiences favored the Trailer Park Inc. cut, neither version was a clear winner. The theatrically released version of the movie actually incorporates parts from each version that tested best during screenings.

Jared Leto revealed in an interview that among the infamous gifts he sent his co-stars were more appropriate items, too. "I did give some really nice, sweet gifts as well," Leto said while promoting the film in New York City, "I gave cupcakes". But then he added with a devilish grin", "I don't think they should have eaten the cupcakes", he quipped, "I also wrote everyone a poem as well", Leto said adding, "It helped me think about who they were and kind of created this illusion of a relationship and make the circumstances a little more realistic". Leto then teased, "The funny thing about the gifts, is no one has actually talked about the craziest stuff, I did get thank you notes for some of the gifts" Leto boasted, "I'm not going to say who or what, or what specific gift was thanked, but there were a lot", "Joker likes to share his toys."

Margot Robbie took circus lessons and received a trapeze certificate at the age of eight, and used those lessons for her role as Harley Quinn.

To prepare for her role as Harleen Quinzel, a.k.a. Harley Quinn, Margot Robbie stated in an interview, "I ended up looking into MMPI (Minnesota Multiphasic Personality Inventory) testings. It's a test that psychologists use to determine what mental illness people might have. It's a list of five hundred questions or something. Whenever we had time to rehearse or improvise, or even in the scenes, I'd just start with those questions. Some of them are basic, and some of them are not. I'd see which ones would catch him off guard, how he'd react, and I'd be like, 'OK, I'm gonna go for this tactic now. It's a lot of trial and error. It's kinda like when your friend is doing something stupid in a relationship, and you're just so frustrated. You're like 'What are you doing? Why?' I landed upon co-dependency as the tact to take. It's like a compulsion, I suppose. When you start looking at it the way an alcoholic is compelled, you know, needs to have a drink. You think of it in those terms, like it's an actual psychological problem, which co-dependency actually is."

The Joker was much more central to the storyline in David Ayer's original screenplay. His personality was more layered, much darker and more homicidal. His relationship with Harley could be described as toxic or abusive, more like an obsession than real love, as he spent more time on creating chaos rather than rescuing her. However, in one scene, he would be lying naked on the floor, depressed and longing for Harley, who was to have a budding romance with Deadshot. The Joker also displayed a much more playful sense of black humor, like in a scene where he waits in a judge's bed to interrogate him about Harley's whereabouts. Most of this material was filmed, but later removed during studio-mandated re-shoots and re-edits. In the Extended Cut, The Joker has only twelve minutes of screen time, with fifty lines of dialogue.

Blake Lively turned down the role of June Moone, a.k.a. Enchantress, due to scheduling conflicts with The Shallows (2016). Brie Larson, Saoirse Ronan, Megan Fox, Elliot Page, Krysten Ritter, Emma Stone, Alicia Vikander, Shailene Woodley, Emilia Clarke, and Alexandra Daddario were all considered for the role.

In a joke segment called "First Drafts" on The Late Show with Stephen Colbert (2015), one of the taglines for Independence Day: Resurgence (2016), "We had twenty years to prepare. So did they", was spoofed, saying its first draft really was: "For twenty years, Will Smith said 'NO.' So we just made it without him." Moreover, and similarly, for Smith's Suicide Squad, released in the same year, which has one tagline that states, "Worst. Heroes. Ever.", the first draft was: "The movie Will Smith did instead of Independence Day 2".

On July 11, 2015, the first trailer for this film was shown at Comic Con 2015. Warner Bros. did not intend the trailer to be widely seen, but later relented, and publicly released the trailer a few days later.

Adewale Akinnuoye-Agbaje kept the leather jacket he wore as Killer Croc.

The song playing in the background while Harley Quinn is dancing in the Joker's club is "Purple Lamborghini". The song is by Rick Ross and Skrillex, and is featured on the film's soundtrack. Jared Leto appears as the Joker in the song's official music video.

Viola Davis (Amanda Waller) was fascinated by her character singling out her psychology and strength and describing her as a "powerful black woman, hard, ready to pick up a gun and shoot anyone at will". She described Waller as "relentless in her villainy", and noted that her powers are "her intelligence and her complete lack of guilt". Davis also read M.E. Thomas' autobiography "Confessions of a Sociopath" to prepare for her role.

To prepare for his role as the Joker, Jared Leto spent countless hours meeting with longtime tenants of a psych ward, and they weren't just meet and greets, these were immersive experiences with individuals who have truly lost their marbles as Leto described them as "people who had committed horrendous crimes, people who have been institutionalized for great periods of time."

The scene of the Joker interrogating Captain Griggs, including the line, "I can't wait to show you my new toys", was in several trailers, but was removed from the final cut.

Margot Robbie learned how to hold her breath underwater for up to 5 minutes or longer.

In creating the look of the Joker, Jared Leto was inspired heavily by David Bowie, specifically by his "Thin White Duke" persona. He also spoke with Grant Morrison, a famed DC writer who has often written the Joker as resembling the rock star. Morrison has even given him Bowie's trademark dilated pupil.

Despite being first and second billed, Will Smith (Deadshot) and Jared Leto (Joker) never interact, nor share screentime.

Margot Robbie has stated that if she wasn't cast as Harley Quinn, she would like to attempt to play Amanda Waller.

Shortly after arriving in Midway City, Deadshot asks for some help from Harley on an escape plan, and refers to getting some help from her "friend", the Joker. She replies with, "You're my friend, too", which may be an allusion to The New 52 comic book run of Suicide Squad, where there was a relationship between Harley and Deadshot.

Captain Boomerang is traditionally a Flash villain.

The songs chosen for the trailers, Spirit in the Sky, Bohemian Rhapsody, and Ballroom Blitz, are in the Wayne's World (1992) movie soundtrack.

Ted Whittall (Admiral Olsen) portrayed Rick Flag in Smallville (2001).

In December 2015 eight months before the film's release, Ike Barinholtz (Griggs) revealed in an interview on the Howard Stern show about how Jared Leto kissed him, "It was a very fun movie to work on...he was in character the whole time at first i was like 'that's lame but then you think about it and I was like I want the Joker in character", Barinholtz was caught off-guard when Leto went off-script during their interrogation scene "I do this scene with him and he's supposed to be intimidating me" he recalled "he comes in and he starts squeezing my boobs he's all [panting and moaning] 'you're a big guy"-cause I'm 6'3, this is while were filming then he fucking grabs me and kisses me on the mouth, full kisses me cameras were rolling and none of this was in the script mind you. I thought 'okay I'm just going to go with it' but then he's like [panting and moaning again] 'Did someone piss their pants?, I'm like "now I did because you said I did!".

List of firearms with which Deadshot is an expert: 9mm pistol, Gatling Gun, revolver, flare gun, potato cannon, machine gun, assault rifle, flamethrower, sniper rifle, anti-tank rifle, shotgun, M1 carbine, bazooka, Derringer, Uzi, grenade launcher, .44 magnum, and a musket.

The first footage of the movie was shown in a teaser trailer during the Warner Bros. panel at San Diego Comic Con in 2015. The trailer was meant to be a glorified sizzle reel, essentially highlighting the different characters, and Warner Bros. had no intention of releasing it to the public. When a low quality version of the trailer, that was filmed by someone in attendance at the panel, surfaced online, Warner Bros. decided to release the high quality version to the public, making it the film's first official trailer.

David Ayer considered giving Shia LaBeouf a part in the film, however Warner Bros. allegedly vetoed this decision, due to his reputation. Ayer would go on to cast LaBeouf in The Tax Collector (2020).

Cara Delevingne listened to rock music from Nick Cave and Megadeth to get into the right mood to play the Enchantress.

The fourth live-action superhero film to win an Academy Award, after Batman (1989), Spider-Man 2 (2004), and The Dark Knight (2008). Superman (1978) received a Special Achievement Academy Award.

For inspiration, Jay Hernandez (El Diablo) based his performance on Raymond Cruz, who was in Training Day (2001), which was written by David Ayer.

Harley Quinn's revolver is a .357 Magnum customized Chiappa "Rhino" 60DS with white grips inlaid with a gold Joker emblem and gold decoration on the barrel shroud.

Jai Courtney (Captain Boomerang) said about his character, "He is an absolute bogan in the purest sense. David Ayer's first instruction to me was, 'find your inner shitbag'".

Harley's revolver, a Chiappa Rhino, fires from the bottom of the cylinder as opposed to nearly all other revolvers which fire from the top. This design is meant to dramatically reduce recoil and enhance accuracy.

Jared Leto said the role of the Joker was "The role of a lifetime".

Ryan Gosling, Sharlto Copley, Matt Smith and Mark Strong were considered for the role of the Joker.

Scott Eastwood's father Clint Eastwood was considered for the role of Two-Face on Batman (1966), before producers decided not to use the character.

This film broke Batman: The Movie (1966)'s record of featuring the most villains in a Batman-related live action film.

Margot Robbie said in an interview if she could give any advice to her character Harley, she would say, "Find your love elsewhere, look to your girls, your girl gang - - you gotta find your love in the good places. Don't look for it in the bad places."

Interacting with a fan on Twitter, David Ayer expressed regret about not making the Joker a main villain in the movie. "Yeah it was a big fun silly movie. It could have been a bigger success had I done it a little different. But it did great and made an impression, believe me it's agonizing but yes The Joker should have been the main villain".

Jared Leto had to prepare physically for the role of Joker, as it required a lot of working out for being in the desired shape. But the actor was so fit and in shape already that within two months, he got himself ripped and shooting started.

The restaurant Amanda Waller enters in the beginning of the film, The Cicada, is a real restaurant. However, The Cicada is not located in Washington, D.C., it is located in Los Angeles, and the Washington, D.C. decal underneath the logo, on the windows, were added for production.

Katana is never out of her costume. She is briefly seen without her mask, but for the entire movie she is wearing her superhero costume.

Karen Fukuhara revealed in an interview during filming about interacting with Jared Leto (Joker) in between takes, "every time I saw him on set he introduced himself as the Joker! I would try to say hi to him as Karen, and he would come at me with full Joker. Haha, it gets weird every time".

In response to the fake rumors about his method acting for the Joker, Jared Leto disclosed in an interview "There's so much hype and so much bullshit around that. I think it's just a fun thing to talk about and, you know, even when the movie came out there was so much misrepresentation about what went down. About the method acting crap. 90% of it wasn't even true and it just takes on a life of its own. It was an incredible experience, everyone was amazing... but everything's great in that world and I'm really proud to be a part of it."

Joel Kinnaman (Rick Flag) regretted getting his SKWAD tattoo by Will Smith he stated to Watch What Happens: Live (2009), that his tattoo artist wife Cleo Wattenström would have done a much better job. "That was a horrible idea," he admitted, via MTV. "You know, don't let a 47-year-old man without his reading glasses tattoo you. That is the life lesson. Especially when you have a very talented wife. It's supposed to be a sh**ty tattoo, so that's what it is."

On why the Joker enjoys inflicting pain, Jared Leto stated in an interview, "I think that the Joker is inflicting upon the world the pain that has been inflicted upon him, so in a sense there's some sort of revenge there, but I think it's all a big game, I think that if there's an opportunity to manipulate or intimidate he finds that really exciting."

For inspiration as the Joker, Jared Leto revealed in an interview: "I looked at all kinds of things. I think the Joker is a cross between a snake, a hyena, maybe a gorilla in there somewhere. The fun thing about the Joker, is that he's completely insane. There are no rules. No right answer. There's a lot of freedom."

Jared Leto is the third actor appearing as the Joker who has won an Academy Award for Best Actor in a Supporting Role (he was awarded in 2014). Jack Nicholson who portrayed the Joker in Batman (1989) won in the year 1984. Heath Ledger who portrayed the Joker in The Dark Knight (2008) won posthumously in 2009.

As the movie was made by comic fans, it's full with Easter eggs considering other comic movies. For example, when Harley Quinn is robbing a purse she destroys a showcase and the logo of the Watchmen can be seen in the background.

When asked if the Joker would like Thirty Seconds to Mars, Jared Leto said: "I think the Joker would like Thirty Seconds to Mars, because he likes a little chaos, and if you've ever been to a Thirty Seconds to Mars show, it's a lot of chaos, and a lot of fun."

Strangely enough, every single member of the U.S. military in the film appears to be a Special Operations Forces member, aside from Colonel Flag. Lieutenant Edwards's S.E.A.L.s, the 160th SOAR helicopter crewmen, and even the background "infantry" soldiers wear the insignia of either the 75th Ranger Regiment or Special Forces.

Rumors that Christopher Plummer would appear in a cameo as Ra's Al Ghul turned out not to be true.

Cara Delevingne admits to not having read any Enchantress comics prior to accepting the role or during production of the film.

Margot Robbie attended a party with co-star Cara Delevingne and unknowingly took a photo booth photo with Prince Harry of Wales. She mistook him for Ed Sheeran.

According to the veteran-owned website SOFREP.com Facebook page, many U.S. Special Operations Forces veterans were technical advisers for the film, and at least one, Kevin Vance, played a Navy S.E.A.L. on-screen. Vance is credited as "Ski", and can be distinguished from the other S.E.A.L.s, as he is bald.

When asked what was the problem that caused the movie to have a poor reception and lukewarm reviews to critics and fans Joel Kinnaman (Rick Flag) stated in an interview to Yahoo Movies: "In the third act. It was a great setup, great characters. I think that if, when we do a second one, I wouldn't be surprised if we see more of a grounded version of the film. I think the characters are so extreme, so I think it would be more effective if we're seeing them [around] maybe less sorcery. Because I think the characters become more extreme if you see them in conjunction with more real people".

Producer Richard Suckle described Harley Quinn as a "Fan fave, funny, crazy, scary. You can't come up with enough adjectives to describe all the different things you see her do."

The first movie featuring Batman to not reference him in the film's title.

Early on in production, Scott Eastwood and Common were widely believed to be playing Jason Todd and The Tattooed Man respectively. Both of these rumors turned out to be false.

In 2020, David Ayer was asked about an "Ayer Cut" of this film, in the aftermath of the successful 'ReleaseTheSnyderCut' fan campaign that had resulted in Zack Snyder releasing his Zack Snyder's Justice League (2021) (after he had stepped down from directing Justice League (2017) due to his daughter's suicide, and was replaced with Joss Whedon). Ayer said that he was stunned to see how much support there was for this version, and told the fans to "keep it positive". The studio, however, stated to have no intention of making this 'Ayer Cut'.

Joker's primary handgun is a .45 ACP customized Colt Gold Cup Trophy (not the more well-known National Match) with a purple finished slide and frame with all the other parts being gold plated.

David Ayer considered casting Freddy Rodríguez as Chato Santana, a.k.a. El Diablo before deciding on Jay Hernandez.

David Ayer revealed in an interview the story behind Captain Boomerang's fetish for pink unicorns stating that the unicorn plushie was originally a set decoration piece in the John F. Ostrander Federal Building. "[Pinky] was actually intended to be a piece of set decoration in one of our office building sets," he said. "I thought [Boomerang] needed a little something kind of fun and silly and it kept appearing throughout the film. It became a bit of a mascot," Ayer then explained, telling fans the unicorn was meant to represent all things George "Digger" Harkness. The villain was particularly fond of the stuffed animal, enough so for him to even take Pinky into battle and beyond. And, what's more, Ayer went on to confirm one of his fans' biggest suspicions about Captain Boomerang: The guy is a total Brony. "Yes, [he's a] Brony," the director confessed. "Which is fine. I think it's a good thing and gives him a little hobby besides robbing banks."

When asked in an interview if the Joker would relate to any songs, Jared Leto said "Well, a lot. I think he would love This Is War, this old song called Attack, but there's this song called End of all Days, and there's a line in that says 'I'll punish you and pleasure you with pain', and that should be a tattoo that the Joker gets next time."

Jared Leto described his role as the Joker as nearly "Shakespearean, and a beautiful disaster of a character". About portraying the Joker, he stated, "I took a pretty deep dive, but this was a unique opportunity, and I couldn't imagine doing it another way, it was fun playing these psychological games, but at the same, it was very painful."

David Ayer reflected on how the aftermath of his film affected his approach in directing Netflix's Bright (2017) "It was shit. Yeah, it was shit reviews. I got my throat cut," Ayer said of Suicide Squad. Critics called the work "unexciting," "predictable," "mind-boggling stupid," and a film "beholden to the corporate vision of other recent DC adaptations." "It was a super polarizing movie. Incredibly polarizing," Ayer added. The director went on to explain how the response made him "gun shy" when going to work on Bright. "It's like going to the boxing ring and getting knocked out is how it felt. And I had to go into the ring again. And directing is a confidence game, because you're selling everyone on something that only exists in your head," he said. "The actors have to feel that confidence to trust that you know what you're doing, and so does your crew. As a director, you set the tone. Really, it's coming off that movie, I understood the pitfalls, I understood the dangers, I knew where the alligators hide, you know? And so I made damn sure I didn't repeat any mistakes." however, history is repeating itself as Bright was described as a "plenty embarrassing" "genre disaster" by critics as the film debuted on Netflix this week.

Margot Robbie (Harley Quinn) revealed in an interview that she agreed to join the film because of her love of director David Ayer's End of Watch (2012).

Throughout the film, Captain Boomerang always ditches the group only to rejoin them later in battle much like a boomerang.

Jake Gyllenhaal was offered the role of Rick Flag, but turned it down. Joel Edgerton, Jon Bernthal and Joel Kinnaman were also considered, with Kinnaman ultimately landing the role.

Margot Robbie described her character as one of the Squad's most manipulative members, and her relationship with Joker as "incredibly dysfunctional", adding that Quinn is "mad about him, like literally mad, she's crazy, but she loves him, and it's a really unhealthy dysfunctional relationship, but an addictive one."

In the comics Killer Croc is a romantic interest of Enchantress, which was explored in Suicide Squad vol. 5, #20.

Originally, the Batman fear-inspiring villain the Scarecrow was going to appear in the Suicide Squad roster.

This movie is the first superhero film since The Dark Knight (2008) to win an Academy Award.

A Nimitz-class aircraft carrier appears in the film. Based on her antenna configuration and the appearance of her 'island' superstructure, the depicted aircraft carrier is the U.S.S. Ronald Reagan (CVN-76).

Like the previous DC Universe movie, Batman v Superman: Dawn of Justice (2016), Suicide Squad features a quote from Vladimir Nabokov's Lolita: Joker refers to Harley as "fire in my loins".

Second consecutive film starring Jared Leto to win the Oscar for Best Make-up and Hairstyling.

Jared Leto commented that he senses "Joker may be much older than people think"--and read literature on shamanism".

In the original DC comics, June Moone a.k.a. The Enchantress began as a superhero who appeared almost exclusively in back-up features. Because she had the ability to transform from ordinary young woman into powerful witch or back again by calling out her name, "Enchantress!", her unfortunate nickname in the comics was "The Switcheroo Witch-eroo!" In her original continuity, she became evil as the result of a botched spell ritual she had thought would erase all evil from the world; this was later retconned to something similar to what appears in the movie. The character gained any sort of popularity only after turning into a supervillain, first appearing as an occasional antagonist to Supergirl and later joining the Suicide Squad comic book series as an ongoing character.

Margot Robbie did not submit a demo reel or audition for her role, because this was offered to her.

There is a 18½ year age difference between Margot Robbie and Jared Leto.

Margot Robbie had a say in what tattoos her character had in this film and Birds of Prey (2020). The tattoo of a dolphin jumping over a rainbow was important to her because she felt Harley (at the time Dr. Harleen Quinzel) would have seen a tattoo as being super rebellious, but didn't want to be too edgy (at the time).

Most of the squad gets introductory dossier-type graphics, with a long list of their skills and personality quirks being listed too fast to read them all. When the story introduces Deadshot, a Long List of weapons he's proficient with appears, with potato cannon of all things flashing on screen for a moment. With Harley Quinn, it mentions she is an accomplice in the murder of Robin. With El Diablo, it's mentioned that the limits of his powers are unknown

When the personal files of each squad member are being shown, George Harkness, a.k.a. Captain Boomerang, has listed under his interests: pink unicorns. Later, when the squad arrives in Louisiana, a pile of weapons and items are on the tarmac. A brief scene shows Harkness coming across a small stuffed pink unicorn. In a moment of decisive urgency, he quickly shoves the unicorn into his jacket, and continues rummaging through the pile.

Deadshot's costumes and weapons have written on them the phrase, "I am the Light, the Way", a reference to Jesus Christ. Will Smith starred as Robert Neville in I Am Legend (2007), and that character also has many references to Jesus Christ.

Deadshot's main sidearm is a heavily customized Glock 17 (3rd Generation) - 9x19mm fitted with a compensator made by Zev, and a flared Magwell, also made by Zev, with a Trijicon RMR Red Dot sight, he also uses a Glock 30 - .45 ACP, he also uses a custom AR-15, with a two-tone red and gold paint job, with a red painted Magpul CTR (Combat/Type Restricted) stock, and outfitted with a custom-made handguard and muzzle-break, also outfitted with a custom Platinum finish ACOG (Advanced Combat Optical Gunsight) with a Trijicon RMR sight (an adjustable LED model) mounted on top along with a vertical grip.

Jai Courtney was rumored to be in talks for Deadshot, before being cast as Captain Boomerang.

Jay Hernandez said about his character El Diablo, "He's a fighter, but he's not giving up that side of his life, because of an attempt that took place. He backed away from criminality. He backed away from aggression. He's backed away from being who he is. It's part of his superpower that he has. It ain't part of him. It's been with him since he was really young. It's like he gave up a big part of who he was, and later rediscovers it to be okay with accessing that side of him."

Killer Croc's dossier states that he stands over 7 feet tall, but throughout the movie he is shown to be near the same height as everyone else, as Adewale Akinnuoye-Agbaje height is actually 6'2.

Will Smith and Margot Robbie co-starred in Focus (2015).

In the Blitz trailer for Suicide Squad, two songs are playing: "You Don't Own Me" by Grace and "Ballroom Blitz" by Sweet. The latter starting exactly halfway through the trailer.

Deadshots "wrist magnums" were built from Glock 19 pistols. The props used in the film were designed and custom made by Walter Klassen FX and Movie Armaments Group (this included "design work, CAD renderings, machining, assembly, finishing and powder coating"). New CNC-machined frames were created for the the Glock 19s and the magazine release and ejection of the one mounted to Smith's right wrist were reversed so that the casings would be able to eject upwards. The blank-firing wrist guns were fully automatic, fired via a thumb trigger connected to a system involving air tubes, a pneumatic actuator, and regulated CO2 canisters hidden in the holstered Glock 18s on Smith's back. According to Walter Klassen FX employee Taku Dazai, firing them created a "rooster tail of fire" and a "huge plume of fire", plus they "sound insane". They are chambered in 9x19mm, due to the fact that they can be seen loaded with the magazines from Deadshot's Glock 18s.

Cara Delevingne described June Moone as "an adventure-seeker who's always wanted some excitement" and Enchantress as "a feral being."

David Ayer and Jared Leto used the drug lords of Instagram as a foundation for the Joker, Ayer said: "a lot of it has to do with creating a character with some kind of history, and history in our world".

This film has made movie history as the 70th feature film to be nominated for an Academy Award and a Golden Raspberry Award.

The name "Harley Quinn" is a phonetically and linguistically corruption of the English term "Harlequin" (based on the Italian name Arlecchino), as the character is being depicted in the DC's Graphic novels, the official movie novelizations and the movies. Even in the French pronunciation of the French word "harlekin" one can pick out the sound of the character's name.

Bola Olubowale was initially reported to have been cast as Nanaue, a.k.a. King Shark, although he does not appear in the final cut. The character finally appeared in The Suicide Squad (2021), but voiced by Sylvester Stallone instead.

Throughout the history of Deadshot his eyepiece has always been worn on the character's right eye. For reasons unknown Will Smith wears the eyepiece on his left eye.

Director David Ayer posted a photo from Jared Leto's early makeup tests, showing a close up of the actor with a different tattoo on his face. "This is an early Joker make up test," Ayer wrote in the post. "The research and fine tuning when crafting a character are endless." This edition of the Joker makeup features a new "haha" tattoo over Leto's left eye and a small "J" on the cheek below it. The "J" actually ended up on the final version of the character but the eyebrow ink was ultimately cut.

Harley Quinn's costume was inspired by Debbie Harry, lead singer of Blondie.

The blue-black camouflage pattern used by the U.S. Navy S.E.A.L.s in the film, is a combination of several patterns, including the Desert Storm-era "chocolate chip" desert pattern, the new U.S. Army standard Multicam, a.k.a. Operational Camouflage Pattern, a U.S. Marine "Urban-T" pattern from 1999, "Flecktarn", and the French "Lizard" pattern, known overall as "Bravoflauge".

David Ayer is a DC comic book fan.

In the club scene with The Joker, we see he has tattoos, but, in fact, Jared Leto has eight real tattoos. He has arrows pointing upward on the back of each leg, he has two triangles on each of the back of his elbows, he has a giant Orbis epsilon on his back, he has on his right collarbone, the saying "Provitio In Altum", which means "launch forth into the deep"; one on his inner wrist, and the last one on his inner arm, which of all represent personal meanings and sayings to his band. When Jared puts his arm up in the club scene, we see his elbow with his real triangular tattoo for a split second. David Ayer, however, did not catch this.

Will Smith's wife Jada Pinkett Smith stars in the DC television show Gotham (2014).

David Ayer explained on why he gave the Joker tattoos, and the grill in his teeth, was to show him as being "Damaged".

The film's cast includes four Oscar winners: Jared Leto (Best Supporting Actor, Dallas Buyers Club (2013)), Ben Affleck (Best Original Screenplay, Good Will Hunting (1997)), Common (Best Original Song, "Glory" from Selma (2014)), and Viola Davis (Best Supporting Actress, Fences (2016)); and two Oscar nominees: Will Smith (Best Actor, Ali (2001) and The Pursuit of Happyness (2006)) and Margot Robbie (Best Actress, I, Tonya (2017))

Influences for the Joker's appearance include Mexican cartel bosses and the work of Alejandro Jodorowsky.

According to David Ayer, the film was originally gonna lead directly to both Justice League (2017) and Justice League Part Two.

Adewale Akinnuoye-Agbaje (Killer Croc) described the character as "a cannibal with rage issues".

A scene filmed but ultimately cut for pacing reasons shows Harley Quinn having a bit of fun with one of the partygoers during her dance at the Joker's club, a masked partygoer has their hands pressed against the glass booth that Harley Quinn is dancing inside, so Quinn does what any Harley does best: she rushes forward a bit and presses her hands against the glass, causing the masked attendee to jump back a bit.

While Joker's thugs are attacking Arkham, you can see Joker through a window attacking someone with a baseball bat.

The Joker's pistol has smiling faces hidden in its design.

On the back of Harley Quinn's jacket, it says "Property of the Joker", indicating that the Joker owns her.

Karen Fukuhara's height is 5'2". When Harley Quinn is describing Katana's appearance, she says her height is 5'5".

David Ayer nicknamed Jared Leto's version of the Joker "Smiley", which was also the name of a character in Training Day (2001), for which Ayer wrote the screenplay.

Jared Leto said about his role of the Joker, "The Joker is someone who gets an extreme reward from the act of violence and manipulation".

Even though Jared Leto was told to shave his whole body, he is only shot from the waist up, in scenes where he is shirtless or his shirt is open, compared to Dallas Buyers Club (2013), where all parts of his body are showing.

The scene where Enchantress receives her magical heart is most unusual, in that it's correctly placed in the middle of her chest. The vast majority of movies and TV shows reflect the popular misconception that the heart is over the left lung.

Only modern DC film to feature Batman, not to be produced by Michael E. Uslan.

Focus (2015), starring Will Smith and Margot Robbie, used "Sympathy for the Devil" by The Rolling Stones as a key part of the large con at the football game. Sympathy for the Devil plays in this film, immediately after introducing Smith as Deadshot and Robbie as Harley Quinn.

Joker displays symptoms of punch-drunk syndrome, a neurodegenerative disease caused by repeated head trauma (such as fighting Batman for twenty years). Symptoms include slurred speech, disorientation, impulsive behavior, and social instability.

Jared Leto explained that the Joker's tattoos gave him a "modern-day gangster look".

The weapons Deadshot is seen handling and shooting are a Smith & Wesson SW1911 E-Series - .45 ACP, while being tested in prison. In the theatrical release it switched to a standard M1911A1, but this error was fixed in the DVD/Blu-Ray release. And a Mk 18 - 5.56x45mm fitted with a Troy PDW stock, canted back up iron sights, and an EOTech XPS sight.

Ryan Gosling, who was the first choice to play The Joker, later starred with Jared Leto, who was eventually cast, in Blade Runner 2049 (2017).

Karen Fukuhara stated that Katana "has morals and codes.

Deadshot, a hired assassin, is featured as an adversary of Batman (Ben Affleck). Bullseye, a similar assassin from Marvel Comics, was featured as the antagonist in Daredevil (2003) which featured Affleck in the title role.

Rick Flag carries a Heckler & Koch HK416A5 fitted with a Geissele Automatics 14.5 Super Modular Rail handguard. The rifle looks to be equipped with Gen 1 Magpul AFG, AN/PEQ-15 laser designator, and a Leupold Mark 6 1-6x20mm M6C1 rifle scope with an Aimpoint T2 Red Dot attached on the right side of the scope with a LaRue Tactical mount.

In the Closed Circuit TV footage of El Diablo's prison riot, after he incinerates half the yard, he is seen with a crown of flames levitating over his head. The crown resembles the one that Hellboy wears when he transforms into the Prince of Hell.

Margot Robbie stated that Director David Ayer encouraged her to be menacing whenever she wanted to play Harley for laughs.

HVT-1 stands for "High Value Target 1".

Tom Hardy was originally cast as Rick Flag but was forced to drop out due to scheduling conflicts with The Revenant (2015). Jake Gyllenhaal, Jon Bernthal, Joel Edgerton, Karl Urban, Bradley Cooper, Tom Cruise, Jason Clarke, Luke Evans, James Marsden and Mark Wahlberg were all considered before Joel Kinnaman was cast. Kinnaman was also considered for the role of Floyd Lawton/Deadshot.

During filming, Margot Robbie started dabbling in the world of tattooing. In addition to giving fellow cast members the tattoo "SKWAD" (which she accidentally misspelled as "SWKAS") she has given over 20 tattoos including one she gave herself. Also during filming, she opened up "Harley's Tattoo Parlour" and gave tattoos to fellow cast members, members of the film crew, and Writer and Director David Ayer

Writer and Director David Ayer said during a San Diego Comic-Con International 2016 that it was a blessing to have Margot Robbie as Harley Quinn because not many actresses would have tolerated what she went through to prepare for and perform the role.

Margot Robbie spoke in a Brooklyn accent when she did The Wolf of Wall Street (2013) and this film. Her character, Naomi Lapaglia originated from Bay Bridge, Brooklyn in the former film. While Harley Quinn's comic book origins put her a few neighborhood's over in Bensonhurst Brooklyn.

Although she tattooed a majority of the cast, Margot Robbie did not perform tattoos on Will Smith or Jared Leto.

For her role, Margot Robbie researched relationship codependency,and treated Harley's relationship with the Joker as an addiction.

Joel Kinnaman and Common both starred in Run All Night (2015).

At 1:55:21 in the top secret file says that the color of June Moone's hair is Blong/Blk. It should've read Blond/Blk

First Live-Action appearance of Harley Quinn.

Jay Hernandez (El Diablo) set his character apart from his teammates as he "just wants to stay out of the fight", while "most of [the Squad members] are happy to get out there and kill people".

Jared Leto and Jack Nicholson have played The Joker. Years ago, Leto also made a reference to what was arguably Nicholson's most famous role as Jack Torrance, in The Shining (1980). It was in the music video for Thirty Seconds to Mars' song "The Kill", where Leto was seen throwing a ball violently at a wall in a hotel.

The song at the beginning of the movie was 'You Don't Own Me' sung by the late Lesley Gore. It was one of her biggest hit from 1968.

Nutraloaf is food given to inmates who misbehave, as is the case with Deadshot, as seen in the beginning of the film. It is made with a variety of ingredients, and it is claimed to be inedible.

In an interview many years ago, Jared Leto was being interviewed about his band, and was asked by the interviewer, "If you could play either Batman, or Christian Grey of Fifty Shades of Grey, which one would you choose?" He said, *Batman of course." However, he ended up playing The Joker. The interview was called "Would You Rather? with Jared Leto".

Some parts of the movie were filmed at Toronto's Distillery District. Over 20,000 other films were also shot there such as the musical "Chicago"

The third film in the DC Extended Universe.

Karen Fukuhara (Katana) and Cara Delevingne (June Moone/Enchantress) were both born the year the popular D.C. Warner Bros. show Batman: The Animated Series (1992) came out.

Jared Leto's Joker laugh is very similar to the old man laugh he does in Mr Nobody.

In one scene, the Joker is seen lying amongst a collection of knives and firearms, which appear to contain many pistols including what appears to be an IWI X95 assault rifle, a full-sized Glock pistol (most likely a Glock 17), two compact-sized Glocks (most likely Glock 19s, one of which is fitted with a suppressor), two Beretta 92FS Inox-style handguns, among others.

Jai Courtney's Spartacus (2010) co-star Nick E. Tarabay portrayed Captain Boomerang on the TV series Arrow (2012).

David Ayer also wrote 'Training Day'. That film opens with an image of a sunrise. 'Suicide Squad' opens with the song, 'House of the Rising Sun'.

Jai Courtney's ex-girlfriend Gemma Pranita, is a former co-star on Neighbours (1985), and is close to Margot Robbie.

Harley Quinn's damaged red, white, and blue shirt has "Daddy's Lil' Monster" emblazoned on it.

In this movie, Will Smith plays Floyd Lawton, a trained assassin and hired killer. In an episode of "The Fresh Prince of Bel-Air", Will encounters a hired assassin who tries to kill his character named Floyd.

Ted Whittall (Admiral Olsen), Jay Hernandez (Diablo) and Kevin Hanchard (Casino Boss) all also feature in The Expanse (2015) as Dr. Michael Iturbi, Dimitri Havelock and Inspector Sematimba, respectively.

Joel Kinnaman previously appeared in RoboCop, making him one of several cast members of that series to appear opposite Batman. The original RoboCop, Peter Weller, voiced Batman. Kinnaman played the role opposite Michael Keaton. Gary Oldman and Ray Wise have both played Commissioner Gordon.

Various behind-the-scenes photos show various fictionalised versions of newspapers reporting "demonic killings" in what looks like a New York City set: The New York Star-Register replaces The New York Times. The Metro Star, a tabloid, appears to replace The New York Post. Morning Gazette has a design that looks similar to The Daily News. The New York Ledger bears similarities in design to The Wall Street Journal. USA POST, a national newspaper, appears to replace USA TODAY.

Harley Quinn was fed vital nutrients through a nasogastric feeding tube when she was detained at the Black Site.

On the first day of filming, Margot Robbie had a chunk of her right eyebrow shaved off by Writer and Director David Ayer.

Margot Robbie spent over 3 hours in the makeup chair to be transformed into her character. Including having her skin painted white, applying 20 temporary tattoos, applying Harley's wig, and actually getting into costume.

In the scene in the extended cut, when Killer Croc kills the new guy, the scream of him dying is from the original Red Alert game.

When Waller threatens the team, Slipknot's image is replaced with a headless silhouette.

Karen Fukuhara and Jasmine Renée Thomas's debut.

Featured in "The A to Z of Superhero Movies: From Abar to ZsaZsa via the MCU", written by Rob Hill.

Robin Atkin Downes: When Deadshot is first introduced, he's been hired by a mobster named Angelo to carry out an assassination. Angelo's voice, heard over the telephone, is provided by Robin Atkin Downes, who played Doomsday in Batman v Superman: Dawn of Justice (2016).

David Ayer: The dead pig that Jared Leto sent the cast is actually seen when they're doing the feeding sessions to the inmates as they drop the dead pig into Killer Croc's cell. It was later confirmed that this was the actual pig that was sent that was used in the film. In the extended cut of the film, the director has a cameo as the guard who drops the pig into Killer Croc's cell.

Several scenes of Killer Croc's backstory were removed from the final cut, including scenes depicting his entire life as a social outcast, due to his physical appearance, and convincing himself that he is beautiful in his own way. Croc crossed paths with Batman while working as muscle-for-hire for numerous Gotham crime bosses, while secretly planning to take over one day. There were also scenes displaying his affinity for making sculptures out of discarded materials. Aside from jokes about Croc viewing himself as "beautiful", none of these were retained in the final cut. Also deleted, was a scene where he becomes sick during the helicopter escort to Midway City, throws up half-digested pieces of goat, and then eats them again, disgusting the nearby Navy S.E.A.L.s.

When Harley imagines a life where she's married with kids, Jared Leto had to wear fake eyebrows, since he had shaved his entire body (except for his head) for the film. He also wore fake hair and fake teeth. "I felt like a game show host from the '70s." he said during an interview.

Harley Quinn's origin is based on the Bruce Timm-Paul Dini story "Mad Love." Quinn is a psychiatrist who develops an obsessive infatuation with The Joker. While her doctor attire is based on the comic, her criminal attire is taken from her New 52 portrayal. Her plunge into the same chemicals that birthed The Joker is also from the New 52.

Chato Santana's (Diablo's) last words are in Spanish: "Ya te chingaste, guey!", which translate to "You're so fucked, dude!"

The Flash is briefly seen in the flashback to Captain Boomerang's initial apprehension. In the comics, Captain Boomerang originated as a regular villain of The Flash's, and was part of Flash's Rogues Gallery.

During the mid-credits scene, it is assumed Amanda Waller is aware that Bruce Wayne is Batman, when she hands over the dossier of metahumans. He, in response, tells her that she better shut it (the Suicide Squad) down, or he and his friends will. This alludes to him bringing about the teaming of the Justice League.

At one point Captain Boomerang harasses El Diablo over him staying out of the fighting. El Diablo says you don't want him to cut loose, showing a brief wall of fire from his hand. Inside the fire is a glimpse of his Fire God form. It is the personification of the fire-demon "spirit of vengeance" that inhabits Diablo.

After the mission is completed, Harley Quinn is shown sipping espresso and reading a book. The book is "Between The Sheets", by Molly O'Keefe, a Harlequin Romance writer.

In early versions of the script, scenes reportedly included passing references to Slipknot (Adam Beach) being a serial rapist, likely to further paint him as unsympathetic to the audience ahead of his own death.

The scene with Captain Boomerang convincing Slipknot that the bomb inside his neck is a ruse, is taken directly from John Ostrander's run. However, in the comic, Slipknot loses an arm and survives.

Katana's final line in the film is in Japanese, but not subtitled; "Doko da? Mienai!" It translates to: "Where is she? I can't see her!"

The scene of The Joker breaking into the nano bomb manufacturing facility, to arrange for Harley Quinn's neck bomb to be disabled, was longer in the original version.

Zack Snyder directed a key scene of the film, which involves The Flash apprehending Captain Boomerang in a flashback.

The Joker kidnaps the professor in charge of the nanite bombs inserted in the necks of the squad, and he persuades him to disarm Harley's device. He uses this tactic so Harley can escape the clutches of Rick Flag and Amanda Waller to reunite with him. However, her device appears to be re-activated when the squad eventually rescues Amanda Waller.

When The Joker is shown lying on the floor in his club, surrounded by weapons, in the top right corner there are two infant sized onesies, one pink, and the other blue. This could be forshadowing the dream sequence that Harley Quinn has later in the film, where she and The Joker are married with twins, a boy and a girl.

The film contains references to the Suicide Squad feature Batman: Assault on Arkham (2014): Amanda Waller brings the Squad together. The Squad comprises of Deadshot, Harley Quinn, Captain Boomerang, a man-beast (King Shark, Killer Croc), and a person with elemental powers (Killer Frost with ice, El Diablo with fire). Batman and the Joker are involved.

Belle Reve Penitentiary is the facility that initially houses Killer Croc, El Diablo, Deadshot, and Harley Quinn, but Captain Boomerang and Slipknot are not initially kept there. Captain Boomerang isn't detained at Belle Reve until after the squad's mission is complete.

Batman and The Joker are iconic opponents in DC lore, yet the two never meet on-screen in this film. The closest they get is when Batman is on top of a car that The Joker is driving.

In an attempt to quickly establish a DC Cinematic Universe, the movie was fast-tracked to be released in between Batman v Superman: Dawn of Justice (2016) and Justice League (2017), so writer/director David Ayer had only 6 weeks to write the screenplay and do casting sessions. Early footage that was leaked online (originally intended for Comic Con) revealed a much darker and more serious product. However, in the wake of the disappointing reception of Batman vs. Superman, Warner Bros reportedly got cold feet, so re-shoots and re-edits were ordered to add much more comedic elements and musical hits, akin to Guardians of the Galaxy (2014) and Deadpool (2016). Ayer has stated that this 'studio cut' was not his version; it was "beaten into a comedy" which left out many elements: it was meant to open with Enchantress returning to the world and be in alliance with Darkseid, so her machine would incorporate a Boom Tube (portal) too. Joker and Harley had much more scenes together: after he drops Harley from the helicopter and it crashes, he would make a deal with Enchantress, in return for not interfering with her plans. He tries to take Harley home and be "King of Gotham", but Harley stands up to him and refuses to betray her new friends. The Squad then turns on the Joker and he escapes. Katana would then be possessed by Enchantress and attack the Squad. Diablo originally survived and Harley and Deadshot eventually hooked up. Ayer later stated that his original version wasn't a rough cut but "a fully mature edit", which was "amazing, [an] intricate and emotional journey with some "bad people" who are shit on and discarded in, [..] with not a single radio song in the whole thing. It has traditional character arcs, amazing performances, a solid 3rd Act resolution."

A VFX reel for Suicide Squad reveals that El Diablo (Jay Hernandez) originally survived to the end of the movie, indicating that the decision to kill him off was made during reshoots.

In Killer Croc's cell at the end of the film, the music video he is watching is Tech n9ne "dwamn".

The villain's nature could be a reference taken from Nightshade's odyssey, a story-arc of John Ostrander's run. Here, it is revealed that the powers of Enchantress derive from the Succubus, a demonic entity which has a brother, Incubus.

This is the second time that The Flash shares a live-action scene with Captain Boomerang. The first being on the CW television show The Flash (2014).

Towards the end of the movie, when Deadshot shoots Harley Quinn's revolver at the bomb-pack, the revolver's side-engraving switches from "HATE" to "LOVE". This alludes to Deadshot's statement: "You don't kill as many people as I've killed and still sleep like a kitten, if you feel s**t like love." However, right before he pulls the trigger, the Enchantress makes him see his daughter right in front of him telling him the only way they can be together is if he doesn't shoot. Now, he has to make a tough descision knowing that if he does pull the trigger, he saves his daughter's life, but may never see her again. This is the ultimate portrayal of Deadshot actually feeling love (albeit, a fatherly love) towards his daughter through sacrifice.

As of 2019, no explanation has been given as to how the Joker survived the exploding helicopter. Enchantress mentions that she could bring him back when Harley talks to her in the battle at the Train Station. It's possible that Enchantress might have followed through on the deal.

WILHELM SCREAM: When Incubus takes down the second Apache Longbow helicopter in Midway City, the scream is mixed into the explosion.

According to Jay Hernandez, WB heads were uncomfortable with El Diablo killing his family and wanted to change it. Hernandez had to fight with them to keep that history.

The Flash's only line in the movie is "No honor among thieves, eh?" A previous production involving this character was titled The Flash: Honor Among Thieves (1990).

when Joker is rescuing Harley in a helicopter, for a split second it is possible to see that one of the henchmen is wearing a uniform with a name badge reading "PANDA MAN", revealing he is the same henchman seen earlier.

There were reports that Griggs (Ike Barinholtz) would be the main villain. This was far from true.

When the Team's Chinook is hit and is going down, a pilot says "Six-one is going down" In Black Hawk Down (2001), and the 1993 real-life "Battle of Mogadishu" that the latter film depicts, the first helicopter, here a Black Hawk, to be downed is called "Super Six-One".

The military helicopters featured in the film include: An MH-60L Direct Action Penetrator (DAP) Black Hawk gunship, with the number "23" on its door, shoots down "Savior One-Zero", another helicopter that The Joker and his men had hijacked, and is called in to extract Waller, but is brought down by Incubus. A regular MH-60L Black Hawk helicopter, not in DAP configuration, delivers Captain Boomerang to the "party" at Midway City in a sack. MH-47G Chinooks. They carried Task Force X, and the accompanying S.E.A.L.s into Midway City. One of them, "Six-One", is shot down by Enchantress' minions, and another Chinook, the aforementioned "Savior One-Zero", was the extraction for the Task Force, but is hijacked by The Joker before it can do so. A Hughes 500, standing in for an MH-6 Little Bird, carries Colonel Flag into the Midway City airport base to meet with his new team. A pair of AH-64D Apache Longbow attack helicopters attempt to kill Incubus during his initial breakout in Midway City with their M230 30mm chain guns, but are destroyed themselves. Of these, all but the Apaches are operated exclusively by the elite 160th Special Operations Aviation Regiment.

At the end when Joker rescues Harley from prison, his police uniform says 'Joker' on it.

In one scene, Amanda Waller kills her staff for knowing too much while receiving no comeuppance. She is quite literally getting away with murder. Viola Davis starred on an ABC show How to Get Away with Murder (2014).