Prince of the City 1981
Directed by Sidney Lumet | Starring: Treat Williams, Paul Roebling, Bob Balaban, James Tolkan
New York City detective Daniel Ciello agrees to help the United States Department of Justice help eliminate corruption in the police department, as long as he will not have to turn in any close friends. In doing so, Ciello uncovers a conspiracy within the force to smuggle drugs to street informants.