At 35, Vaughn's magnetism is palpable. "His persona, when he goes into a room, is so much larger than life that he immediately fills the room," says his Mr. & Mrs. Smith director, Doug Liman. And the actor – Jennifer Aniston's new squeeze – has a way with words. "He's like a verbal stunt pilot," says pal Jeremy Piven. "He's got a lot of confidence."