Harry Callahan is a tough streetwise San Francisco cop whom they call Dirty Harry In this action classic you&ll see why & also why Clint Eastwood&s reputation as a premier film star & moviemaker is secure A rooftop sniper (Andy Robinson) calling himself Scorpio has killed twice & holds the city ransom with the threat of killing again Harry will nail him one way or the other no matter what the "system" prescribes Filming on location director Don Siegel made the City by the Bay a vital part of Dirty Harry a practice continued in its four sequels Thirty years after its arrival the original remains one of the most gripping police thrillers ever made