I think the film will do $250 at least, but I'm not sure about $300. I think it will have the "Batman Returns" effect, in that it will be too dark for a lot of people. Parents will take their kids opening weekend, be shocked that it's a PG-13 (thank you Warner Bros. and your industry pull), and warn other people not to go. Two and a half hours could hurt it a bit, too. Iron Man and Indy are just coming in at over $300, and they're much lighter family friendly fare.