This movie really impressed me. I thought it was just shlock until I read an interview with the director, Karyn Kusama. I like her work so far (Girlfight, Aeon Flux) and this movie surprised me, in it's depiction of high school (which mostly hasn't been well done in film since the 80s). And Megan Fox really surprised me, as thif film required far more of her than the Transformers films. And she delivered.