Clooney isn't a draw, he never has been. Not that his presence was the deciding factor here but it didn't help any. Brad Pitt might be the only 50+ male actor who can help a film's B.O. at this point. Depp's flopped out, Cruise couldn't sell EoT even with terrific reviews and the Scientology thing has further hurt him. Rouge Nation will sell on the franchise's name, not his. I bet his next original movie flops. Pitt doesn't have a lot of big hits but at least his movies consistently turn a profit aside from a couple art films he's done that had no chance to begin with. If I was a studio with a tentpole calling for a 50+ actor, he'd be the first person I'd turn to.