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."
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.
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.
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.
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+.
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.
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).
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).