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 far a free, democratic society can go to protect itself. The original draft ended with a police sniper, instead of Callahan, shooting Scorpio. Another earlier version of the story was set in Seattle, Washington. Four more drafts of the script were written. Although Dirty Harry is arguably Clint Eastwood's signature role, he was not a top contender for the part. The role of Harry Callahan was offered to John Wayne and Frank Sinatra, and later to Robert Mitchum, Steve McQueen, and Burt Lancaster. In his 1980 interview with "Playboy", George C. Scott claimed that he was initially offered the role,