The movie is a slightly-less-witty, Bible-thumping Mean Girls.

True that. As for Mandy Moore, she has something of a mean streak in her. I saw a bit of American Dreamz where she's trying to win the American Idol-like contest but she full knows she's playing a game not trying to "make a dream come true." She's fairly heartless, and it plays well against how cute she is. It's something she should really stick with in her career.