This is from Just Jared. Read the first blog. http://www.justjared.buzznet.com/zac-efron

The dashingly handsome Zac Efron takes costar Leslie Mann for a spin around the dance floor in this new movie still for 17 Again. Mann, 35, plays the wife of Efron, 20, and costar Matthew Perry, 38. Efron and Perry play the same character (Mike O’Donnell)–just at different times.

Says Zac, “The idea of going back to high school as an adult is incredible…until you actually get there! It’s like this crazy twilight zone of adolescent insecurities and people trying to grow up and figure out what they want to do with their lives. It’s crazy in the movie. Nothing comes out right when you’re a teenager. You say the wrong thing. You just do. It’s a part of life. It’s a part of growing up. One of the funny parts of this movie is that every year kids change—youth culture is changing all the time. Even now, when I go back to a high school campus, it really is like a frighteningly new place!”