We also get an update on their physical progress for their roles of Batman and Wonder Woman, respectively.
Regarding Ben Affleck, his wife Jennifer Garner told Jimmy Fallon last night that her husband is leaving Friday to start to get ready for Batman.
In a separate interview, Garner also stated that Ben Affleck is sporting 17-inch guns, which at 6'4" seems to fit in with the recent description from Ben Affleck's trainer that they are going for a "real-life superhero look."
The Israeli site Ynet reports that new Wonder Woman Gal Gadot has already left for Michigan. They also posted images of Gal Gadot with trainer Mark Twight giving us a look at her physical stature for the role.
Warner Bros. has yet to officially announce when production on Batman Vs. Superman begins. Both director Zack Snyder and Henry Cavill have been spotted in Detroit for some time, since as early as January.
It's also been learned that Warner Bros. will be opening Batman Vs. Superman a week earlier in the UK, but it seems they still aren't budging with the U.S. release date which sets them up against Marvel Studios and Captain America 3.
The untitled "Batman Vs Superman" film has a newly announced May 6, 2016 release starring Ben Affleck, Henry Cavill, Gal Gadot, Amy Adams, Laurence Fishburne, Diane Lane, Jeremy Irons, Callan Mulvey, Holly Hunter and Tao Okamoto.
For more news on the "Man of Steel" and related movies head on over to the Cosmic Book News Superman movie hub.