We now know, thanks to an update from Variety, that Law would be playing Dr. Walter Lawson, the human guise of Mar-Vell, the Kree hero who was the original Captain Marvel. Mar-Vell will be a mentor to Carol Danvers as she learns to harness her newfound superpowers.
Captain Marvel is being directed by Anna Boden and Ryan Fleck, who directed Half Nelson. The film's most recent script was written by Inside Out writer Meg LeFauve. Guardians of the Galaxy writer Nicole Perlman wrote a previous draft.
Carol Danvers was an Air Force pilot who was infused with alien Kree DNA after touching some of the Kree's enhanced technology. The DNA gave her superpowers and she became first the superhero Ms. Marvel, then Binary and Warbird before finally taking over the mantle of Captain Marvel.
The Captain Marvel movie will be a period piece set in the 1990s of the Marvel Cinematic Universe and will feature the shapeshifting aliens known as the Skrulls, rulers of a rival empire to that of the Kree.
Law also recently joined another major franchise, the Harry Potter movies, taking on the role of young Albus Dumbledore in Fantastic Beasts: The Crimes of Grindelwald. He is also still attached to appear in a third Sherlock Holmes movie with the Marvel Cinematic Universe's Iron Man, Robert Downey Jr.
Captain Marvel is expected to film next year and opens in theaters on March 8, 2019.
Thor: Ragnarok is now playing in theaters. Other upcoming Marvel Cinematic Universe movies include; Black Panther on February 16, 2018, Avengers: Infinity War on May 4, 2018, Ant-Man and the Wasp on July 6, 2018, the fourth Avengers movie on May 3, 2019, the sequel to Spider-Man: Homecoming on July 5, 2019, and Guardians of the Galaxy Vol. 3 in 2020.