split said:
A dumb teen slag wants to bang this strange, jealous old freak who sparkles. Some pussy-whipped dumbass wants her to bang him. Everyone whines a lot and spends most of the movie looking pathetic. Pretty sure she's a cutter.
It's hard to be sure because I don't know which is the most right answer, but I'm going to go out on a limb and guess The Twilight Saga: Breaking Dawn.