Filed under: Scripts, Newsstand, Comic/Superhero/Geek, Remakes and SequelsRumors have been flying today that Bryan Singer is indeed working on the sequel to Superman Returns. Well, it is not just rumor -- Singer himself confirmed it to Empire. "Yes, I'm just getting back with writers after the strike. We're just in the development phase. I'm starting to develop a sequel . . .with the intention of directing it." He lashes out at claims that first film was a flop, pointing out that it made...