Bang Bang (2011)

Justin is a troubled teen looking for a way out of the gang life His best friend Charlie is a rich Taiwanese kid who lives in the nice part of town Justin runs away from home after a fight with his Mom and takes refuge at Charlies house while Charlies parents are away on a prolonged business trip The murder of a fellow gang member avalanches into a full blown war with a rival gang Caught in the midst of teenage angst gang life and alienation the two friends find themselves heading down two different paths of life