Dirty (2005)

Armando Sancho (Clifton Collins Jr.) is a former Los Angeles gang member who has transitioned into law enforcement. Sancho, however, who is surrounded by corruption, finds that life as a police officer is just as morally bankrupt as life as a gangster. After being implicated in the shooting of an innocent man himself, Sancho is then pressured to testify against his loose-cannon friend and partner, Salim Adel (Cuba Gooding Jr.), who has a history of abusing citizens.