Although not in the movie, Sir Patrick Stewart jokingly informed Bryan Singer that he would be willing to play Mystique, should Jennifer Lawrence "start playing up." He said: "I am so ready to be naked, painted blue, and the world is ready for it too."

(at around 43 mins) When Apocalypse arrives at Storm's home, the Star Trek episode Star Trek: Who Mourns for Adonais? (1967), whose story mirrors Apocalypse's own behavior, is playing on her television. In the episode, a powerful entity who was worshipped as a god on old Earth meets modern humans and throws a temper tantrum upon learning that they have no more use for old gods.

For the role of Charles Xavier, James McAvoy shaved his head. It was something he had wanted to do in the previous X-Men films.

The film was to be subtitled "Age of Apocalypse" after the comic of the same name, but this was changed to "Apocalypse" for a more ominous title, as well as to avoid comparison with Avengers: Age of Ultron (2015), Transformers: Age of Extinction (2014), and The Age of Adaline (2015).

Particularly with Psylocke, Nightcrawler, and Cyclops, the outfits and characters' looks were designed to pay homage to their comic book counterparts, differently from past films when the X-Men used standard black leather uniforms. Cyclops' costume is taken from Jim Lee's blue and yellow design in the 90s.

This is the first time that the Summers brothers, Scott Summers (Cyclops) and Alex Summers (Havoc), appear together in a live-action movie. In the comics, there was another brother, Gabriel Summers (Vulcan), but he has not appeared in any shows or movies, and the filmmakers decided two brothers in a film was enough.

Xavier's wheelchair in the teaser trailer is the same one Patrick Stewart used in X-Men (2000).

(at around 36 mins) Michael Fassbender improvised the "Is this what you want from me?" line.

In the comics, Mystique is the mother of Nightcrawler, and was forced to abandon him, though this is never acknowledged or hinted at in either this film or X2: X-Men United (2003). However, in an outtake, Jennifer Lawrence ad-libbed a line acknowledging Nightcrawler as her son by Azazel; this take is shown in the gag reel.

Bryan Singer has called this film "kind of a conclusion of six X-Men films, yet a potential rebirth of younger, newer characters" and the "true birth of the X-Men".

(at around 1h 2 mins) In the debris that Magneto first lifts up at Auschwitz, for one frame, you can clearly see the coin that he used to kill Sebastian Shaw in X-Men: First Class (2011). Visual Effects Supervisor John Dykstra had worked on that film, and during editing, he spotted the coin and yelled out "Hey, you got the coin - terrific - I love it!"

Bryan Singer chose Apocalypse as the antagonist to examine the origins of mutants on Earth: "It deals with ancient mutantism, the origins of the mutant state; or the origin of gods and religion. There's a mixture of ancient religion and cultism in the character of Apocalypse."

In the comics, the Age of Apocalypse affected the Marvel Universe immensely and resulted in the deaths of prominent characters such as Peter Parker (who never becomes Spider-Man), Namor, Clint Barton, Thor, Carol Danvers, Frank Castle, Victor von Doom, Susan Storm, Ben Grimm and many others. In contrast, Gwen Stacy, who famously dies in the main universe, is alive. The Age of Apocalypse is an alternate reality identified as "Earth-295".

Tom Hardy and Idris Elba were both considered for the role of Apocalypse, but that part went to Oscar Isaac instead.

According to Bryan Singer, Apocalypse's voice is a mixture of different sounds: "He's bearing the souls of many lives and many characters. He has contained within him many voices, all taken from various ranges and tones."

(at around 1h 2 mins) Apocalypse's quote, "Everything they built will fall! And from the ashes of their world, we'll build a better one!" is almost a direct quote of his from the animated series X-Men: The Animated Series (1992) ("From the ashes of this world, I will build a better one!").

(at around 53 mins) The song playing when Apocalyse finds Angel is by the heavy metal band Metallica. It's called "The Four Horsemen" from the 1983 album "Kill 'Em All".

This is Betsy Braddock a.k.a. Psylocke's first major appearance. She had a minor role in X-Men: The Last Stand (2006).

Originally, Apocalypse was to be a space entity, as in the comics, but Bryan Singer found the religious aspect of the character more interesting, and removed the space element from the film.

According to Simon Kinberg, Apocalypse is the darkest villain in the series: "He doesn't distinguish between mutants and humans like the other villains do, only between the weak and the strong. To him it's all just one giant screwed-up world that worships false idols and needs to be saved from itself. He is the God of the Old Testament: if there isn't the order and worship then I'll open up the Earth and swallow you whole!"

Writer Simon Kinberg has stated that he and Bryan Singer have talked about this film being the origin of the traditional X-Men team and hopes future films will follow this "next generation of X-Men characters" following on from X-Men: First Class (2011), X-Men: Days of Future Past (2014), and X-Men: Apocalypse.

Bryan Singer describes Apocalypse as a mutant acting as a god, saying: "Apocalypse's from an ancient time and doesn't understand he's a mutant. He thinks of himself as more of a god. He's a hard man to break, it's why he thinks he's God. And the big giant ego of the god is that the world lacks order and respect/devotion to him. It needs to be culled, it needs to be wiped away and rebuilt."

Storm is never referred to by name in the entire film, either as Storm or Ororo Munroe.

Despite the title, En Sabah Nur is never called Apocalypse throughout the movie. He is only referred to as Apocalyse in the trailer.

Apocalypse made his live-action debut in 2016, the 30th anniversary of his debut in the X-Men comics (May 1986).

For her role as Psylocke, Olivia Munn was advised by James McAvoy to practice sword-fighting: "I learned to use a regular sword with both hands, so I can switch in between a real sword and a CGI blade. It's more work for the special effects guys but it's pretty cool."

The visual effects experts deliberately styled Magneto's powers in this film on the loops of power a magnet gives off (lines of force, electrostatic induction) and supercell clouds (a thunderstorm/tornado hybrid): "it is based on real magnetism, but scaled up and tied to a weather event. As the metal is manipulated, it heats up and generates steam, which forms a vapor, which would collect around the loops. There is a layer of metal and attached concrete, then a layer of dust and debris, then more dust and vapor, and then the clouds."

Bryan Singer had turned down X-Men: The Last Stand (2006) to make Superman Returns (2006). This film uses concepts he had planned to use in The Last Stand.

(at around 2h 10 mins) This is the second X-Men movie to feature the Danger Room, after X-Men: The Last Stand (2006).

Kodi Smit-McPhee (Kurt Wagner/Nightcrawler) was originally set to play the young Logan/Wolverine in X-Men Origins: Wolverine (2009), but stepped out of the role in order to film The Road (2009).

Despite having a small cameo at the end of X-Men: Days of Future Past (2014), Famke Janssen expressed her disappointment about not being asked to appear in this movie. She said she would have loved to appear alongside Sophie Turner in a scene with two Jean Greys.

(at around 18 mins) The book from which Professor X is teaching the class in the beginning of the movie is "The Once and Future King", which featured in the same context in the original X-Men (2000).

Elle Fanning, Chloë Grace Moretz, Hailee Steinfeld, Saoirse Ronan, Daisy Ridley, Lily Collins, and Margot Robbie were considered for the role of Jean Grey, before Sophie Turner was cast.

(at around 40 mins) It is revealed in the film that Moira MacTaggert has a son. This is a reference to her son in the comics, Kevin MacTaggert, who is the mutant Proteus. Previously, this was lightly mentioned in X2: X-Men United (2003), when his name is seen on William Stryker's computer.

Sophie Turner became interested in the role of Jean when she received an overwhelming response from a fan survey asking for their preferred choice to play the role as well as from her Twitter followers. She summarized her audition and casting process as 'three months of hell' - reading and waiting for next round of selection. Towards the end, before she was formally cast, she became more frustrated as she didn't receive a response from the producers. However, it turns out that the delay was due to her contractual obligations to her television show, Game of Thrones (2011), as Bryan Singer and the producers had to hammer out a proper shooting schedule with the show's producers.

This is the second film appearance for Nightcrawler since his debut in X2: X-Men United (2003).

Other members of the Four Horsemen in the comic, who are not members of the faction in this movie, are Wolverine and Caliban.

In the comics, Elisabeth Braddock a.k.a. Psylocke was born a British Caucasian who later permanently swapped bodies with a Japanese ninja named Kwannon. The actress portraying Psylocke, Olivia Munn, is of Eurasian descent, which combines both comic nationalities.

In the first three movies, Angel, Psylocke, and Jubilee are portrayed as younger than Cyclops, Jean, Storm, and Nightcrawler. However, Jubilee is being portrayed as the same age as the four, while Psylocke and Angel are now older.

The Egyptian procession contains 295,000 people, but was filmed with 25 actors, and the rest were visual effects.

(at around 1h 4 mins) Fans have gotten the in-joke from Jean Grey after watching Star Wars: Episode VI - Return of the Jedi (1983) in which she says the third movie is the weakest (in reference to the criticisms from the fans about X-Men: The Last Stand (2006)). However, the scene includes another in-joke. Before Jean remarking that the third movie is the weakest, Jubilee says that Star Wars: Episode V - The Empire Strikes Back (1980) was the best. Bryan Singer reportedly said, in 2003, that he envisioned X2: X-Men United (2003) as the film series' The Empire Strikes Back. Fans agree that X2 is the best of the first three, with some saying it is the best entry in the entire franchise. In addition, this could be viewed as a self-deprecating swipe at this very movie itself, it being the third of the "First Class" trilogy (with the second film "Days of Future Past" generally considered the best of the three, again like "The Empire Strikes Back").

Olivia Munn had actually originally auditioned for the role of Vanessa in Deadpool (2016). But, the producers and Casting Director felt that she wasn't right for the role. They did, however, say that they would keep her mind, and hoped to work with her on a future X-Men movie. So, when casting began for X-Men: Apocalypse (2016). they remembered her, and brought her back in the audition for the role of Psylocke.

This is the first time in the franchise where Mystique's blue body is achieved by other means than applying extensive body paint and prosthetics.

In the comics, William Stryker is a religious fanatic and televangelist with a military past, and an unequivocal hatred of mutants. He committed hate crimes against mutants as a leader to his secret paramilitary group, the Purifiers. His comic book debut "God Loves, Man Kills" was a main inspiration for X2: X-Men United (2003). However, this was taken out of the films to avoid religious controversy. Instead, this film, as with X2, borrows elements from Henry Peter Gyrich (also a ruthless government official) and Professor André Thorton (the one in charge of the Weapon X project in the comics).

(at around 9 mins) Scott's powers manifesting in a bathroom was something Bryan Singer wanted for X2: X-Men United (2003), but for budgetary and scheduling reasons the scene never came to fruition. A bathroom set was constructed for X2, but it was re-purposed for the scene in which Mystique seduces the prison guard.

(at around 59 mins) Apocalypse's line "Come and see" when he collects Magneto is a reference to the Revelation 6:7: "And when he had opened the fourth seal, I heard the voice of the fourth beast say, Come and see! And I looked, and behold a pale horse: and his name that sat on him was Death, and Hell followed with him. And power was given unto them over the fourth part of the earth, to kill with sword, and with hunger, and with death, and with the beasts of the earth."

Alexandra Shipp shaved her head in order to sport a Mohawk as Storm.

(at around 2h 10 mins) When the pan of Quicksilver's leg cast is shown, you can see Bryan Singer's signature on the cast.

Quicksilver (Evan Peters) would appear to be a fan of the Canadian rock band Rush. He can be seen wearing a Rush T shirt and there is a poster of the band's album 'Moving Pictures' clearly displayed on his wall early in the film. On his leg cast, it prominently says "I Love Rush".

This is the first film to feature all of the major "blue" mutants - Mystique, Beast, and Nightcrawler all have major roles in the film. However, Dr. Hank McCoy a.k.a. Beast does appear outside of his blue form in X2: X-Men United (2003).

The trailer for the film attracted controversy from the Indian government for it using the name of the Indian deity Krishna as an assumed identity of a mutant villain. The final theatrical cut removes the Krishna reference, and replaced it with godlike figures from other cultures.

In the movie, Havok is the older brother of Cyclops. In the mainstream comics, Cyclops is older than Havok. In the Ultimate X-Men comics, he was sometimes referred as the older brother.

(at around 5 mins) Apocalypse's original horsemen had different powers: War had super strength, Famine had pyrokinesis, Pestilence had telekinesis (like Psylocke), and Death can create energy fields.

During an interview with Graham Norton, Jennifer Lawrence described her blue outfit as "Mystique" to be so constricting and skin-tight that she had to urinate through a funnel while standing upright.

(at around 1h 16 mins) The dog seen at the Xavier School is Bryan Singer's pet Tauntaun, named after a creature from Star Wars: Episode V - The Empire Strikes Back (1980).

Third lowest grossing X-Men film, domestically, as of February 2017. However, it's the second highest earner worldwide. The first being X-Men: Days of Future Past (2014).

This is Jubilation Lee/Jubilee's first major appearance, after appearing in Generation X (1996) and having minor roles in the first three X-Men films.

To prepare for her role as Jean Grey, Sophie Turner studied Famke Janssen's performance as Grey in the previous X-Men films.

Amber Stevens West and Zendaya were considered for the role of Storm, before Alexandra Shipp was cast.

The jacket Nightcrawler is wearing is like the one worn by Michael Jackson in Michael Jackson: Thriller (1983).

Taron Egerton turned down the role of Cyclops.

Bryan Singer wished to deliberately raise the level of graphic violence and gore in this film. The visual effects experts at Digital Domain complied with this concept, but thought the Egypt assassination attempt may have been too much.

(at around 59 mins) For the wide shot of Auschwitz seen from above, the visual effects experts used reference material from the BBC documentary Auschwitz: The Nazis & the 'Final Solution' (2005).

(at around 40 mins) In X2: X-Men United (2003), there is a scene where Mystique is looking at Stryker's computer files. There is a list of mutant names, including a few we will see in later films. However, there is one name that might grab your attention: Kevin MacTaggert (aka: Proteus). This is the mutant son of Moira MacTaggert, played by Rose Byrne in X-Men: First Class (2011) and "X-Men: Apocalypse", as Professor X's (James McAvoy) love interest. There is a picture of Kevin in Moira's office at the CIA, and when the Professor sees the photo, he asks incredulously, "You have a son?!" Moira was married and had Kevin with her (villain) husband, Joe MacTaggert, who hated mutants. Since neither are mutants, the gene must be recessive.

Dazzler was planned to make an appearance in the movie, according to writer Simon Kinberg. However, she is not in the final film.

(at around 5 mins) Visual Effects Supervisor Lou Pecora based the Egyptian guards' burning on methyl cellulose: "When the guards are thrown against the wall, it stretches out, and yet it is contained so as it stretched out you can see the skeleton and the liquefied organs through it."

(at around 3 mins) The unnamed mutant into whom Apocalypse transfers at the beginning of the film is the seventh mutant in the film franchise with accelerated healing abilities. Wolverine, X2/Laura, Lady Deathstrike, Sabretooth, Deadpool, and Viper are six others.

Lana Condor describes her role of Jubilee as a timepiece: "If you've seen my costume, like I'm straight out of the '80s, like they literally took me out. You'll never really forget that you're in the '80s."

Timothée Chalamet, Ben Hardy, Charlie Rowe, Taron Egerton, Logan Lerman, Josh Hutcherson, Dylan O'Brien, Jesse Plemons, and Jamie Blackley were considered for the role of Scott Summers a.k.a. Cyclops, before Tye Sheridan was cast. Ben Hardy would later be cast in the role of Angel.

This is Ben Hardy's feature film debut. He previously starred in the British soap opera EastEnders (1985) for two years.

Sophie Turner shares similarities with her predecessor Famke Janssen: Neither are natural redheads (Turner is blonde and Janssen is brunette). Both are European (Turner is British and Janssen is Dutch). Both are an inch taller than their co-stars playing Cyclops; Tye Sheridan is 5'8", while Turner is 5'9", and James Marsden is 5'10", while Janssen is 5'11". Both are older than their co-stars playing Cyclops; Turner is nine months older than Tye Sheriden, and Janssen is nine years older than James Marsden.

At 144 minutes, this is the longest X-Men film to date.

Oscar Isaac is the third Star Wars actor or actress to work on an X-Men film, after Ray Park, who played Toad in X-Men (2000) and Darth Maul in Star Wars: Episode I - The Phantom Menace (1999), and Rose Byrne, who played the handmaiden Dormé in Star Wars: Episode II - Attack of the Clones (2002). Daisy Ridley was also in talks of playing Jean Grey before the role went to Sophie Turner.

(at around 37 mins) The song playing on the radio as Apocalypse makes his way through the market in Egypt is an Arabic version of the A Flock of Seagulls' hit "I Ran".

This is the third time Tómas Lemarquis (Caliban) plays an albino.

Sophie Turner is the second Game of Thrones (2011) cast member to join the X-Men franchise, with Peter Dinklage being the first.

(at around 18 mins) In the first scene with Charles Xavier, he is reading to his class: "...doomed to break forth bloodily, then the past must be obliterated and a new start made." And, "Let us now start fresh without remembrance, rather than live forward and backward at the same time." These are quotes from T.H. White's 'The Once and Future King', and are implied references to the previous X-Men movie, X-Men: Days of Future Past (2014) and that Wolverine was living in both the past and present at the same time. Skip back to X2: X-Men United (2003) and you see Magneto reading "The Once and Future King" in his cell.

The anchor from X-Men: First Class (2011) is visible in one of the magnetic tentacles when the jet carrying the X-Men first enters Cairo.

In the comics, Betsy Braddock a.k.a. Psylocke is the twin sister of Captain Britain.

Kodi Smit-McPhee wore a prosthetic tail as Nightcrawler. However, the tail is CGI when Nightcrawler wraps it around Angel in a fight.

Sasha Pieterse turned down the role of Jean Grey.

(at around 1h 4 mins) Up the Academy (1980) is playing at the mall in this film, even though it is set in 1983, and UTA was released in 1980. It is an inside joke, because Oliver in UTA was played by sixteen year old actor J. Hutchison. J. Hutchison is now known as Hutch Parker, and is a 20th Century Fox executive. He was one of the producers of this film, and its inclusion at the movie theater, is a nod to Hutch and his influence on the X-Men franchise.

(at around 1h 12 mins) During the missile launching scene, one of the men uses the call sign "Polaris". Polaris (Lorna Dane) is a mutant who has electromagnetic control and magnetic field generation, and who is also Magneto's daughter.

The film came out on May 25, birthday of Sir Ian McKellen, who first portrayed Magneto on-screen.

Bryan Singer has described X-Men: Apocalypse as "A big monster of a movie."

Sophie Turner, a natural blonde, didn't have her hair dyed red for the movie, because her hair was dyed red for Game of Thrones (2011)). Both, Sansa Stark and Jean Grey are redheads.

Bryan Singer compared this film to Game of Thrones (2011), saying: "It's a younger generation finding their powers and finding out who they are and their place in the world. They don't even know if that's the right goal. Everyone's miserable, but they want to get that power."

(at around 2h 10 mins) In X-Men (2000) in the glass room scene at the end, Magneto tells Professor Xavier that "People will come for you and your children, what do you do when you wake up to that". The Professor tells Magneto "I'll feel a great swell of pity for the poor soul who comes to my school looking for trouble." This is almost the exact same line told by the younger Professor to Magneto at the end of this film.

Released ten years after the release of X-Men: The Last Stand (2006).

Tuesday Knight launched a failed campaign via social media, in an attempt to be cast as the mutant Dazzler.

Fourth Marvel movie to feature a Star Wars reference, after Captain America: The Winter Soldier (2014), Deadpool (2016), and Captain America: Civil War (2016). This is not including the right-hand references.

Marks the shortest gap between the release of two X-Men films, being released just three months after Deadpool (2016). While not an official X-Men movie, it takes place in the same universe, references the cast of the X-Men films, and features two X-Men (Colossus and Negasonic Teenage Warhead) as supporting characters.

Michael Fassbender (Magneto) and Kodi Smit-McPhee (Nightcrawler) are enemies in this film. Fassbender and Smit-McPhee had previously worked together on Slow West (2015), where they played allies.

(at around 8 mins) Ally Sheedy appears as Scott Summers' teacher in 1983, the same year that Ally Sheedy starred in WarGames (1983). In this film, the screens of the United States military command, are very reminiscent of the screens in NORAD seen in WarGames.

Jamie Chung was interested for the role of Psylocke.

(at around 1h 4 mins) The film features the younger X-Men discussing Star Wars. This film not only contains "Star Wars" actors Rose Byrne and Oscar Isaac, but was released on the 39th anniversary of Star Wars: Episode IV - A New Hope (1977).

Ben Hardy is the second actor with the first name Ben to portray Angel in the franchise, the first one being Ben Foster in X-Men: The Last Stand (2006).

On-screen brothers Lucas Till and Tye Sheridan both come from Texas.

Nicholas Hoult and Tye Sheridan previously starred together in Dark Places (2015).

Out of the three movies, this is the film that Michael Fassbender (Magneto) has the least amount of lines.

It was revealed that Carter Jenkins and Kaya Scodelario were cast as Northstar and Aurora which turned out to be an April's Fool Day joke.

(at around 17 mins) The "Scott Summers and Jean Grey" romance is hinted at when he bumps into her, knocking her books out of her hands.

Lucas Till and Evan Peters appeared on the fifth season of House (2004).

Nightcrawler and Cyclops' heights are almost opposite heights to their comic counterparts. Kodi Smit-McPhee is 6'1" tall, while his character Nightcrawler is 5'9". Tye Sheridan is 5'8" tall, while his character Cyclops is 6'2". Ironically, Alan Cumming and James Marsden, who played the older Nightcrawler, and older Cyclops in the original timeline, are both 5'10" tall.

(at around 1h 15 mins) Second Oscar Isaac movie to have "Sweet Dreams (Are Made of This)". The first, Sucker Punch (2011), features a cover version.

Sophie Turner has blue eyes, while Famke Janssen, who plays the grown up version of Jean Grey, has dark brown eyes.

Ally Sheedy plays Scott Summers' teacher, who kicked him out of class for misbehaving. In the movie WarGames (1983), Sheedy played a smart aleck high school student.

Stan Lee: (at around 1h 12 mins) creator of the X-Men, appears as a civilian during the missile launch sequence. This is Lee's fourth cameo in an X-Men film, and he appears with his now deceased wife Joan Lee.

John Ottman: (at around 1h 12 mins) Composer and Editor on the X-Men films, appears as a soldier during the missile launch sequence.

Ally Sheedy: (at around 8 mins) the teacher at the school where Scott's powers manifest.

Bryan Singer: (at around 1h 30 mins) a soldier Weapon X kills during his rampage.

(at around 1h 15 mins) Quicksilver's Xavier School run lasts three minutes, but took twenty days to film; Evan Peters stated this in multiple interviews (usually alongside Sophie Turner.

(at around 1h 35 mins) Jean Grey uses her telepathic powers to calm down Wolverine (Hugh Jackman), and get some of his memories back. In X-Men (2000) she did essentially the same thing for him.

Jennifer Lawrence has previously revealed this was originally going to be her final appearance as Mystique. At the time of release, she's less than two years younger than Rebecca Romijn was when she first originated the role for X-Men (2000). X-Men: Apocalypse is also, at the time of release, the last contracted film for James McAvoy, Michael Fassbender, and Nicholas Hoult, but all expressed interest in doing more, if the scripts were good. They all appeared in Dark Phoenix (2019).

Simon Kinberg explains that, thanks to the time-travelling consequences of X-Men: Days of Future Past (2014), history has been altered so that some mutants have turned out differently than in the previous films. This has enabled new versions of old characters to potentially exist and appear in these films (Cyclops, Jean Grey, Storm, Angel, Nightcrawler, Blob, William Stryker, Wolverine).

(at around 2h 5 mins) In the final battle scene, Jean Grey is shown in a flaming image representing her Phoenix status just as Apocalypse is defeated. His final words are potentially referential to the future of the comic book time-lines where Phoenix is responsible for the destruction of mankind. Ultimately, Phoenix would be responsible for fulfilling Apocalypse's goals.

The appearance of Psylocke in this film is intended to lead into X-Force. Psylocke is a member of the X-Force team.

According to Simon Kinberg, this is the final film in the First Class story arc, which also consisted of X-Men: First Class (2011) and X-Men: Days of Future Past (2014). Kinberg calls this film the culmination of Xavier and Lensherr's relationship. "First Class was about Erik becoming empowered, the origin story of a man's power. Days of Future Past was about Charles becoming empowered, a guy who is a mess, but masterminds the end of a massive event. This film has them both at their peak, and finally going at each other!"

(at around 1h 35 mins) When Wolverine escapes from his cell and starts rampaging through the military complex, he meets up with Jean Grey, Cyclops, and Nightcrawler, but they don't recognize one another (simply because they have never met before in this timeline). Ironically, Hank McCoy/Beast, Peter Maximoff/Quicksilver and Raven/Mystique would have recognized Wolverine (during X-Men: Days of Future Past (2014), Beast and Quicksilver worked with him, and Mystique delivered him into the hands of the military), but they only hear him raging from their holding cell, and never get to see him.

(at around 2h 10 mins) Erik and Charles have a conversation at the end of this movie which is very similar to the one they had at the end of X-Men (2000) in the plastic prison.

(at around 2h 10 mins) The film ends with the X-Men practicing on Sentinel robots in the Danger Room - the way X-Men: The Last Stand (2006) began.

The psychic battle between Xavier and Apocalypse was based on a concept from X-Men: First Class (2011), where Xavier and Emma Frost would have battled on a psychic plane. However, at the time the idea was considered too similar to the film Inception (2010).

Angel is presented in a blue light when he first gets his metal wings, which makes his skin look blue. In the comics, Angel was given metal wings and blue skin by Apocalypse.

In order to explain Wolverine's cameo, Bryan Singer compared the X-Men timeline to a river and stated that even if you throw rocks into the current, the river still flows. In other words, even though the timeline was reset by X-Men: Days of Future Past (2014) certain events would still occur as they should. Even though Wolverine was saved by Mystique, who posed as William Stryker, in 1973 he would still be taken into the Weapon X program, be given his Adamantium claws, and lose his memory sometime prior to 1983.

According to Simon Kinberg, this film contains more mass destruction than any of the previous X-Men films. Kinberg states: "We've spent the most time talking about creating a character that's the most powerful mutant villain that we've seen in the X-Men movies so far, more powerful than Magneto or the Phoenix! The kind of scope and scale we're talking about, is like a disaster movie featuring an extinction-level event. We're talking Michael Bay and Roland Emmerich-style movie making, which you've never seen in an X-Men movie, or any superhero movie."

(at around 1h 50 mins) When Nightcrawler is teleporting Professor X away from Apocalypse, it briefly shows him moving through another dimension. This idea of Kurt passing through other dimensions has been mentioned in the comics before. In fact, the animated series X-Men: Evolution (2000), did an entire episode devoted to this idea called Shadow Dance, where Forge creates a device to slow Kurt's teleporting down so he can see in the other dimension.

The Four Horsemen that Apocalypse recruits in this film are: Storm (Famine), Magneto (War), Archangel (Death) and Psylocke (Pestilence). Archangel and Psylocke had been Horsemen in the comics (Angel was an original member, and Psylocke became a Horseman in the "Uncanny X-Force" comic), and Storm and Magneto were Horsemen in X-Men: Evolution (2000).

(at around 2h 5 mins) When Jean Grey unleashes her powers, Apocalypse's armor is destroyed, exposing his body. His body resembles his appearance in X-Men: Evolution (2000).

The film redoes the events of X-Men Origins: Wolverine (2009): Blob makes an appearance as a fighter. William Stryker creates Weapon X. Wolverine gets his adamantium claws and escapes being trapped as Weapon X.

Psylocke and Angel appear to know each other before they become horsemen. Psylocke suggests to Apocalypse that he recruits Angel and during their fight with the X-Men, Archangel calls out to Psylocke so they can attack as a team. In the comics, Psylocke and Angel are a couple and both join the ranks of X-Force.

In Deadpool (2016), Negasonic Teenage Warhead remarks to Colossus that some of the perks to being an X-Man are "a house that blows up every few years" and "matching unitards." In this film, set thirty years before "Deadpool", but debuting in theaters three months later, the house and school blows up, and the mutants wear matching "unitards" (flight suits) for the final battle.

Apocalypse is mainly based on his comics incarnation (a blue-skinned and all-powerful mutant who believes in purging the world), but is also based on the Shadow King, an ancient Egyptian psychic who transfers bodies and who confronted a young Charles Xavier and inspired him to create the X-Men.

(at around 2h 5 mins) Apocalypse is shown to have some connection to The Phoenix Force, a cosmic entity inside Jean Grey as he states "All is revealed" before he is disintegrated.

Apocalypse has the power to move between bodies. This is not his traditional power in the comics, but is based on the X-Men storyline "The Twelve", where he attempted to transfer his consciousness into an all-powerful mutant to achieve godhood.

The post-credit scene reveals that Essex Corp is getting a sample of the Weapon X. In the comics, Essex is Mister Sinister, who in "X-Cutioner's Song" comic line, impersonates Apocalypse.

(at around 2h 5 mins) Apocalypse's last line is "All is revealed." Apocalypse is actually Greek for "Revelation," and is in fact the Greek title of the Biblical Book of Revelation.

Jean's method of defeating Apocalypse as the Phoenix is taken from the "Ultimate X-Men" comics.

Magneto has a wife and daughter, named Magda and Nina, who are killed by a soldier. This was taken from the X-Men comics. However, Nina was named Anya, and she was the first child Erik ever had. While in the films, Magneto has already had Peter Maximoff (and twin).

(at around 1h 15 mins) Nicholas Hoult and the dog Taunton are seen being taken out of the Xavier School at high speed. Hoult's face was sprayed with air hoses to get the vibrating look of high-speed movement, but Tauntaun's face was done with computer graphics imagery.

(at around 45 mins) A young Storm is seen in X-Men: First Class (2011) with white hair during the Cerebro scene while her hair turns white by Apocalypse in this film, to further enhance her mutant abilities.

Storm becomes a Horseman of Apocalypse, akin to a goddess. In the comics, she was at one point worshipped as a goddess in Africa.

(at around 1h 40 mins) The ship that is magnetically lifted off the seafloor is the U.S.S. Indianapolis, mentioned in a memorable speech by Robert Shaw in Steven Spielberg's Jaws (1975) - which is the movie director Bryan Singer named his production company for: Bad Hat Harry.

(at around 1h 30 mins) In William Stryker's base, the alarm is the same from Aliens (1986).

(at around 2h 5 mins) When Jean Grey becomes Phoenix, her eyes have the Phoenix symbol, becoming more pronounced as her power grows to wipe Apocalypse out of reality. This is also from the comics as her power grew to infinite levels.

The three First Class films each have a part of Xavier's origin: becoming paralyzed (shot during the first X-Men mission), opening the school (family inheritance), and losing his hair (a side-effect when attacked by Apocalypse). None of these occur even remotely similarly to how they happened in the comics. He is paralyzed during a psychic battle with the Shadow King long before he creates the X-Men, the school has been funded by Angel's Worthington Industries since the 70s, and he had early hair loss since his 20s and 30s, possibly because of his powers.

Peter Maximoff a.k.a. Quicksilver is the son of Erik Lehnsherr a.k.a. Magneto. In real-life, Evan Peters is only ten years younger than Michael Fassbender.

When Visual Effects Supervisor Lou Pecora was working on the destruction of Auschwitz, someone told him: "I don't want anything left of that damn camp by the time we are done with this sequence."

(at around 1h 40 mins) In the shot of Magneto's powers destroying New York City, the Twin Towers can be seen in the background.

Professor X offers Magneto a chance to stay at the school, which he declines. In the comics, Magneto accepted this offer and became a mentor to the New Mutants, and The New Mutants (2019) is the next X-Men movie planned after this one.

Archangel's death is a reference to his false death in the comics. In the film, he dies in the plane crash, while in the comics, Angel was suffering from depression after losing his wings, and it is believed he sabotaged his own jet to explode. This event was pioneered by Sinister and Apocalypse to convince Angel to become Archangel.

(at around 1h 11 mins) The piece of classical music heard during the missile launch sequence and again during the end credits is Ludwig van Beethoven's "7th Symphony Major, 2nd Movement - Allegretto in A Minor." It was also used in another apocalyptic themed film, Knowing (2009), also starring Rose Byrne.

Angel possesses many similarities to Wolverine in this film. Both are successful cage fighters (Angel defeats ten mutants in a row, while Wolverine is the champion in Alberta). Both defeat the obese and immensely strong Blob. Both have slashing weapons (Wolverine with claws, Angel, taloned wings). Both are heavy drinkers. Finally, both men are profane to people who try to recruit them. In X-Men: First Class (2011), Wolverine tells Magneto and Professor X to "go fuck yourselves". In Apocalypse, Angel tells Apocalypse, Storm and Psylocke to "piss off" in both German and English.

40th anniversary of the Phoenix story, and the first appearance of Psylocke (1976), and the 30th for Apocalypse (1986).

The destruction of Xavier's School for Gifted Children is a handy explanation for why the mansion looks different in the original trilogy set in a later time period - the mansion was rebuilt in a different configuration to the "original" seen here and in the previous two films of the "Beginnings Trilogy".

Josh Helman (William Stryker) and Nicholas Hoult (Hank McCoy a.k.a. Beast) are enemies in this film. Helman and Hoult previously worked together on Mad Max: Fury Road (2015) as brief allies, before also turning into adversaries.

(at around 1h 11 mins) The movie, set in 1983, shows a total nuclear missile launch caused by Apocalypse. In this year, The Day After (1983) was released, a television movie about a total nuclear war, and the consequences of it.

In the original story from the comic book X-Men #94 in which while they were crashing into NY Harbor, Jean transforms into the Phoenix saves everyone and leaves the earth to go swallow an entire sun in an inhabited solar system. In this storyline , from the comic she is not of this earth, as she is adopted on earth by the Grey Family. Let alone a mutant of mankind. When Apocalypse states " All is revealed" the Phoenix Bird of Cosmic Fire is visible. In itself means she is not human and Xavier had put safeguards blocking the knowledge while she was a young girl. In the original X-Men, Jean Grey is the 1st student of Xavier's School for The Gifted. In another timeline, Mr. Sinister clones Jean Grey and she is discovered when the New X-Men battle Mr. Sinister.

IN the comics while Xavier is walking through a street market and has his pocket picked by the then child Ororo. At that young age she had white hair while under Farouk the Shadow Kings mental spell. This is how Xavier finds Farouk and battles him, killing his body. Xavier walked away from that ordeal. Not crippled when he left as he is shown walking down the street putting his hat on, but a nasty burn on the back of his safari jacket is drawn Whether this is earth #235 or not her hair has always been white since her birth. The Mohawk came about after she became the leader of the Morlocks.

(at around 1h 40 mins) Magneto already has his helmet from X-Men: Days of Future Past (2014) from 1973 as he is broken out of his plastic prison cell he retrieved it after looking at the "trophies " the CIA had taken from the mutants they experimented on and killed. He also would have had it in his home when he worked at the steel mill. As it is already stated this is the same earth #235 and timeline as the previous movie. Yet Apocalypse creates one, Magneto would have worn it and his uniform to show them who he really was, not have it all appear by Apocalypse.