A batch of domain names that seem to be related to Batman Vs. Superman have been discovered which may give a clue to the movie's official title or something altogether, perhaps even a related video game (or mobile games).
Warner Bros. has yet to announce the official title, but everyone has been referring to the new movie as "Batman Vs. Superman" after the the football scene that was recently shot used the title.
Now the website Fusible has spotted a batch of domain names registered by Warner Bros. They previously spotted domain registrations related to Arkham Origins, I believe, before that video game was officially announced.
There is a long list of registered domains, but the coolest sounding happens to be "Man of Steel Knight Falls."
Some of the other names have "Darkness" in the title (more than likely not going to be used following The Dark Knight Rises).
Other titles include "Battle The Knight," "Black of Knight," "Man of Steel Battle The Knight," and "Man of Steel Shadow Of The Knight."
There is even one for "KnightFalls," which is the Batman comic book arc that saw Bane break Batman's back with Azrael taking over. Perhaps if it's movie related, it could be related to Nightwing, as the character has been recently rumored to appear in Batman Vs. Superman.
"Batman Vs Superman" has a July 17, 2015 release starring Ben Affleck, Henry Cavill,Amy Adams, Laurence Fishburne and Diane Lane.
For more news on the "Man of Steel" and related movies head on over to the Cosmic Book News Superman movie hub.