This is a shot from "I am Legend", A Warner movie, with a bill board with that batman superman duel logo.
As i'm sure you can tell im listening to this weeks cast, with them talking about a batman superman justic league movie, and that shot came to mind. Seeing that someone thought it was an idea of a S/B movie was a good enough to hint it in a movie set a few years in the future.
i think if the wanted to do a movie with both, they need to get Bruce Timm and the rest of the animated series team to write it. cause "worlds finest" was one of the best stories for there first meeting.
they would have to reset the Superman story from go. because the last one was just jerking off christopher reeve's corpse.....(i could rant about that, but i won't)
.... i just made myself angery.... anyway i didn't see this posted anywhere in the forums if it is let me know.