Prince of the City (1981) is an American crime drama film about an NYPD officer who chooses to expose police corruption for idealistic reasons. The character of Daniel Ciello (played by Treat Williams) was based on real-life NYPD Narcotics Detective Robert Leuci and the script was based on Robert Daley's 1978 book of the same name. The film was directed by Sidney Lumet and also featured Jerry Orbach.