Heathers

Heathers is a movie starring Winona Ryder, Christian Slater, and Shannen Doherty. At Westerburg High where cliques rule, jocks dominate and all the popular girls are named Heather, it's going to take a Veronica and mysterious new...
A girl who halfheartedly tries to be part of the "in crowd" of her school meets a rebel who teaches her a more devious way to play social politics: by killing the popular kids.