"No personal questions," I'm told by a publicist before my interview with Camilla Belle. It's not often I hear something like that, but when your client is accused of being "The Other Woman" in the very messy and very public split between Joe Jonas (of the Jonas Brothers) and country superstar Taylor Swift, it's understandable. Belle's career is young and malleable, and too much focus on her romantic escapades will turn her into a tabloid queen--career pesticide for someone who "just wants to be taken seriously." And Belle does, toggling between art-house fare like The Ballad of Jack and Rose opposite Daniel-Day Lewis and the big-budget misfire 10,000 B.C. So the rule is stick to her new movie Push (alongside Chris Evans and Djimon Honsou), a kinetic thriller caught in a purgatory between an X-Men movie and an episode of Heroes. No problem.