Producer Kevin Feige announced that this movie happens before the events of Iron Man (2008), and features the Skrulls as the main villains.

This film is set in the 1990s, and serves as a prequel tale for established Marvel Cinematic Universe characters Nick Fury, Phil Coulson, Korath the Pursuer, and Ronan the Accuser.

Stan Lee reportedly will make a cameo appearance, which he filmed prior to his death in 2018.

Throughout the history of Marvel Comics, eight different characters have taken the name "Captain Marvel". This movie will feature three of them: Carol Danvers (a human superhero previously known as "Ms. Marvel"), Mar-Vell (a Kree alien and superhero), and Khn'nr (a Skrull alien and superhero). The film will also feature Maria Rambeau, the mother of Monica Rambeau (another Captain Marvel who later changes her name to "Photon").

Jude Law took counsel from his Sherlock Holmes (2009) co-star Robert Downey, Jr., who plays Iron Man in the Marvel Cinematic Universe, on appearing in this movie. "He talked a little bit about how making a Marvel Cinematic Universe movie is fitting this one piece into a bigger picture, and giving yourself over to that. It's not about trying to understand everything. Just do your piece."

Samuel L. Jackson (Nick Fury) and Clark Gregg (Phil Coulson) will be digitally de-aged in order for their characters to look like their younger selves, since the movie is set in the 1990s. This is the first time Marvel has done de-aging for characters for an entire movie. They previously used this tactic in Ant-Man (2015), Captain America: Civil War (2016), Guardians of the Galaxy Vol. 2 (2017), and Ant-Man and the Wasp (2018), but only for flashback scenes.

This will be the twenty-first film to be released by Marvel Studios for the Marvel Cinematic Universe.

Katheryn Winnick, Natalie Dormer, Emily Blunt, Katee Sackhoff, Yvonne Strahovski, and Rebecca Ferguson were rumored for the title role.

Captain Marvel is based on Ms. Marvel Carol Danvers (a pilot who gets superpowers), but her origin incorporates the alien Captain Marvels Walter Lawson/Mar-Vell and Khn'nr (both Kree/Skrull soldiers who come to Earth and decide to defend it. Furthermore, Khn'nr had his memory tampered with which causes him an identity crisis, which Carol suffers in this movie).

To prepare for her role as Captain Marvel, Brie Larson trained for nine months, learning judo, boxing, and wrestling. She also visited Nellis Air Force Base and met with active duty airmen, including Brigadier General Jeannie Leavitt and Thunderbirds pilot Major Stephen Del Bagno.

There were concerns that Brie Larson was too young to portray a pilot. Screenwriter Nicole Perlman consulted with the U.S. Air Force, who said it was possible for someone between twenty-eight and thirty-four to become an accomplished pilot like Danvers.

Nicole Perlman previously wrote the first draft of Guardians of the Galaxy (2014).

This movie will not be a traditional origin story, as it has been confirmed that the heroine will already have her powers when the movie starts.

When portraying the alien Skrull Talos, Ben Mendelsohn uses his native Australian accent, and an American accent when Talos adopts a human disguise.

Marks the second directing pair in the Marvel Cinematic Universe after the Russo Brothers, this time the married couple of Ryan Fleck and Anna Boden. Boden is also the first female director for a Marvel movie.

Carol Danvers has had many superhero outfits over her history. This film will feature a few of them.

Keanu Reeves was in talks to portrays Mar-Vell, but he ultimately turned down the role.

The first solo female-led movie in the Marvel Cinematic Universe. Ant-Man and the Wasp (2018), released before, is led by a male-female superhero duo.

In the 2016 Marvel Comics, Captain Marvel joins the Canadian hero team Alpha Flight as part of a space program. Alpha Flight is to get its own separate movie from Twentieth Century Fox.

The Starforce uniform design combines the designs for Mar-Vell (a green and white armor) and Captain Marvel's 2012 suit (a jumpsuit with a star insignia).

The film is scheduled to be released on March 8, 2019, International Women's Day.

Despite the fact that this movie takes place before, and will be released before, Avengers: Endgame (2019), this movie was actually filmed after the latter.

When Brie Larson's casting was announced at Comic-Con, CNN ran the headline "Shazam! Brie Larson is 'Captain Marvel'," apparently not realizing that they were thinking of the wrong Captain Marvel.

The trailer has received about one hundred nine million views worldwide in its first twenty-four hours of release.

The Skrull make-up took two hours to apply.

The filmmakers cite 1990s action movies as an influence on the action, in keeping with the era in which the film is set.

Jamie McKelvie, who designed Carol's Captain Marvel suit in the comics, praised the movie costume for closely adhering to his work.

In the comic books, Maria Rambeau was the mother of Carol Danvers' friend and ally Monica Rambeau, who was a superhero who went under the name of "Photon". Maria uses the title "Photon" in this movie.

Brie Larson and Samuel L. Jackson appeared in Farce of the Penguins (2006), Unicorn Store (2017), and Kong: Skull Island (2017).

Jude Law described his role as the Kree officer Mar-Vell as a devout warrior: "He's driven by a belief in the divine leadership of the Kree people, unquestioning, conservative, but inspirational."

This movie was announced at a Marvel event in October 2014.

When Brie Larson was announced at the end of the San Diego Comic-Con for Marvel's panel, she took part in a photo selfie with the cast and crew of Doctor Strange (2016), Guardians of the Galaxy Vol. 2 (2017), Spider-Man: Homecoming (2017), and Black Panther (2018).

While this isn't the first movie with a female superhero, it is the first to be written primarily by women. Supergirl (1984), Catwoman (2004), Elektra (2005), and Wonder Woman (2017) were written by men. The closest was Catwoman (2004), which gave a writing credit to Theresa Rebeck. However, that movie also had three male writers credited.

The first trailer released for this movie received more than one hundred nine million global views in just twenty-four hours, making it the eleventh most viewed trailer ever.

The official trailer was released on Good Morning America (1975) on Tuesday, September 18, 2018.

First MCU film to be released after Stan Lee's death.

Elizabeth Wood, Emily Carmichael, Rachel Talalay, Niki Caro, Lesli Linka Glatter, Lorene Scafaria and Rebecca Thomas were on the short list to direct the movie.

The first trailer was released on September 18, the anniversary of the founding of the US Air Force.

This will be the first Walt Disney Studios Motion Pictures-distributed film not to stream on Netflix, after Disney decided to let their licensing deal with Netflix expire. Disney plans on releasing this movie on their subscription service, Disney+.

Gemma Chan is the tenth actress from Doctor Who to appear in the Marvel Cinematic Universe after Toby Jones (Captain America: The First Avenger (2011) and Agent Carter (2015)), Jenna Coleman and David Bradley (Captain America: The First Avenger (2011)), Christopher Eccleston (Thor: The Dark World (2013)), Tony Curran (Thor: The Dark World (2013) and (Daredevil (2015)), Karen Gillan (Guardians of the Galaxy (2014), Guardians of the Galaxy Vol. 2 (2017), Avengers: Infinity War (2018) and Avengers: Endgame (2019)), Peter Serafinowicz (Guardians of the Galaxy (2014)), David Tennant (Jessica Jones (2015)) and Riann Steele (Ant-Man and the Wasp (2018)).

Ronda Rousey had expressed interest in playing the title role.

Malaysian actress Raja Ilya is hinted to have a role in this movie.

DeWanda Wise was set for the role of Maria Rambeau in this movie before dropping out due to scheduling conflicts.

In December, after months of speculation, the Captain Marvel website finally confirmed Jude Law will play Mar-Vell. At one point, based on a list of upcoming movie toys, it was rumored he may be playing a different character; a villain.

1st Marvel Studios film released after the death of Stan Lee, who passed away in Nov 2018. No word if a tribute to him is planned for this film or if it is being saved for Avengers:End Game.

Jennifer Kent and Jennifer Yuh Nelson were in the running to direct.

The first official trailer for this movie gained more than one hundred nine million views on YouTube in twenty-four hours.

Gemma Chan is the eleventh actor from the "Transformers" films (having previously played Quintessa) to appear in a Marvel superhero film, after Rachael Taylor (Maggie Madsen, Trish Walker), Hugo Weaving (Megatron, Red Skull), Kelsey Grammer (Beast, Harold Attinger), Titus Welliver (Felix Blake, James Savoy), Nicola Peltz (Tessa, Jane), Stanley Tucci (Abraham Erskine, Joshua Joyce/Merlin), Laura Haddock (Vivian Wembley, Meredith Quill), Omar Sy (Bishop, Hot Rod), Sir Anthony Hopkins (Sir Edmund Burton, Odin) and Jorge Lendeborg Jr. (Jason Ionello, Memo).

Keanu Reeves Was Almost Casted As Yon-Rogg

In February 2019 Marvel launched the official website of the film which emulates design from the 1990s, including HTML frames, a mix of rainbow fonts, pixelated GIFs, a hit counter, a guestbook, and a low-resolution trailer framed inside a window resembling Real Player.

First Marvel film to stream on Disney+

This film marks Jude Law's debut in the Marvel Cinematic Universe as the Kree superhero Mar-Vell. Law previously starred in Sherlock Holmes (2009) as Dr. John Watson, appearing alongside Robert Downey Jr. as Sherlock Holmes. Downey Jr. is also part of the cast of the Marvel Cinematic Universe, having played Tony Stark since his role in Iron Man (2008). The cast of the MCU now also includes Martin Freeman and Benedict Cumberbatch, who also played Watson and Holmes in Sherlock (2010).

This film is based on the "Skrull/Kree War" storyline.

Samuel L. Jackson described Nick Fury at this point in time as a desk jockey with two good eyes, who has not yet become cynical towards bureaucracy.

First movie appearance of Agent Coulson in the Marvel Cinematic Universe since he was stabbed and, apparently, killed by Loki, in The Avengers (2012). He was later revealed to have survived, as explained in Marvel's Agents of S.H.I.E.L.D. (2013).

This features the cinematic debut of the Marvel alien race the Skrulls. In the comic books, the Skrull made their debuts in a Fantastic Four adventure.

The film takes place in 1995.