Ginger Snaps (2000)
Ginger Snaps is a 2000 Canadian werewolf horror film directed by John Fawcett. The film focuses on two teenage sisters, Ginger and Brigitte Fitzgerald (Katharine Isabelle and Emily Perkins), who have a fascination with death. The title is a pun on the cookie ginger snap. "Snap" (snapping) also relates to losing one's self-control, or a quick, aggressive bite. During the film's production, the Columbine High School massacre and the W. R. Myers High School shooting took place, causing public controversy over the film's horror themes and the funding it received from Telefilm.
More at Wikipedia.