Rent Skinwalkers (2006)

Creatures, bound by the blood of the wolf, that can kill with curses and move at lightening speed, watching the night sky for the rise of the blood-red crescent moon. These are the Skinwalkers. They feed on our flesh and thirst for the taste of human blood. The red moon signals each pack, divided by principles, hell bent to survive an ancient prophecy. On his 13th birthday, Timothy, a half-blood, is about to reach the time of his transformation. Closely guarded since birth, he alone has the power to control the destiny of his family, and their kind, a gift that has placed his very life in danger.