Dirty Harry
Whether or not you can sympathize with its fascistic/vigilante approach to law enforcement, Dirty Harry (directed by star Clint Eastwood's longtime friend and directorial mentor, Don Siegel) is one hell of a cop thriller. The movie makes evocative use of its San Francisco locations as cop Harry Callahan (Eastwood) tracks the elusive "Scorpio killer" who has been terrorizing the city by the Bay.