We'd probs fall on the floor and never regain consciousness if we were even in the same room with Rob Pattinson, but who was RPatz star-struck around? Zac Efron! "He was a really cool guy," Rob says, according to ShowBizSpy. "That was one of the first times I'd ever been star-struck, but just because his face is so specific, it's kind of surreal." Aw! Maybe these will team up in a movie soon? A girl can dream...