Dirty Harry "Rawhide", was responsible for creating Callahan's distinctive old-fashioned brown and yellow checked jacket to emphasize his strong values in pursuing crime. Filming for "Dirty Harry" began in April 1971 and involved some risky stunts, with much footage shot at night and filming the city of San Francisco aerially, a technique for which the film series is renowned. Eastwood performed the stunt in which he jumps onto the roof of the hijacked school bus from a bridge, without a stunt double. His face is clearly visible throughout the shot. Eastwood also directed the suicide-jumper scene. The line, "My, that's a big
Dirty Harry to have received several death threats and was forced to get an unlisted telephone number. In real life, Robinson is a pacifist who deplores the use of firearms. Early in principal photography on the film, Robinson would reportedly flinch in discomfort every time he was required to use a gun. As a result, Siegel was forced to halt production briefly and sent Robinson for brief training in order to learn how to fire a gun convincingly. Milius says his main contribution to the film was "a lot of guns. And the attitude of Dirty Harry, being a cop who was