Originally Posted by roach
I have a suspicion that they had already known who their Batman was going to be when they announced Batman/Superman at comic con. I am willing to bet that Ben has already seen the costume and may have even tried it on already.
I'm willing to bet it's a lot easier for studios to negotiate with big actors and work on pre-production in secret when most people aren't aware a specific movie is actually in development. Before the announcement (hell, even after), I don't think anyone would have looked twice if Ben Affleck were having meetings with VIPs at WB.