Colors (1988)

In this gritty police drama from director Dennis Hopper, street-wise cop Bob Hodges (Robert Duvall) and hotheaded rookie Danny McGavin (Sean Penn) grapple with their new partnership on the gang-ridden streets of Los Angeles. Although Danny finally lets Hodges show him the ropes, his adrenaline-fed brutality earns him a reputation with the very gangs they want to help. With a gang war ready to explode, Danny confronts his own racism even as he falls in love with Louisa (Maria Conchita Alonso).