Warner Bros. Pictures announced today that the release of Zack Snyder's untitled Superman/Batman film has been moved from a July 17, 2015 release to May 6, 2016, the same date as a yet-to-be-titled Marvel Studios film.
According to the studio this will allow "the filmmakers time to realize fully their vision, given the complex visual nature of the story. The decision was made following the shift of the start of production to second quarter of this year."