Warner Bros. has officially titled the Batman-Superman pic “Batman v Superman: Dawn of Justice” with principal photography starting today in Detroit.

Henry Cavill and Ben Affleck star in the film with Zack Snyder directing. Pic also stars Gal Gadot as Diana Prince/Wonder Woman, with Amy Adams, Laurence Fishburne and Diane Lane returning from “Man of Steel,” Jesse Eisenberg as Lex Luthor, Jeremy Irons as Alfred, and Holly Hunter.

Film is written by Chris Terrio, from a screenplay by David S. Goyer. Charles Roven and Deborah Snyder are producing. Benjamin Melniker, Michael E. Uslan, Wesley Coller, David S. Goyer and Geoff Johns also serve as executive producers.

Plot details are unknown.

Production will take place in Detroit as well as areas around Illinois; Africa; and the South Pacific. Film is set to bow May 6, 2016.

The title seems to hint to an origin tale for the untitled “Justice League” film that Snyder has already committed to direct, which the majority of the cast is expected to appear in.

Warner Bros. also released the official logo for the movie, pictured below.