The first footage for "Batman v Superman" was unveiled last year at Comic-Con, a year after the project was announced as a sequel to 2013's "Man of Steel", reported Variety.
Warner Bros has not commented officially on the news.
Zack Snyder is directing "Batman v Superman" from Chris Terrio's script, from a story by Snyder and David S Goyer.
The cast includes Henry Cavill, Ben Affleck, Gal Gadot, Amy Adams, Diane Lane, Laurence Fishburne, Jesse Eisenberg and Jeremy Irons.