The studio has named the film Batman v. Superman: Dawn of Justice. Principal photography begins Wednesday in Detroit.
Zack Snyder will return to direct the new movie, a sequel to 2013's Man of Steel. Henry Cavill is set to reprise his role as Superman, and Ben Affleck, Gal Gadot, Jesse Eisenberg and Ray Fisher have joined the cast as Batman, Wonder Woman, Lex Luthor and Cyborg.
The subtitle, Dawn of Justice, may reference the Justice League adaptation Snyder plans to direct in the future.
Batman v. Superman: Dawn of Justice is scheduled for release May 6, 2016. A Justice League movie is expected to follow in 2017 or 2018.