In Juno, screenwriter Diablo Cody was able to turn the teen comedy genre inside out with a ticklish mixture of the hilarious and the humane, and here she is trying to do something similar, but the various ingredients she tosses into the script blender mix into a lumpy mess, rather than the smooth concoction you might expect. The film’s horror elements aren’t particularly scary, and while they do have a certain currency in satirizing the parasitical and vicious nature of teen-girl relationships, even that element of the film feels strangely undercooked, despite a plethora of saucy dialogue and sarcastic quips. (Hollywood Jewel 16, Waco, TX)