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 (film series) graphic novels, revealed in an interview that he created the "Sin City" story-arc "That Yellow Bastard" out of his dislike of "The Dead Pool". Miller said: "When I went to see the last "Dirty Harry" movie, "The Dead Pool", I was disgusted. I went out and said, this is not a "Dirty Harry" movie, this is nothing, this is a pale sequel." and I also said, "that's not the last "Dirty Harry" story, I will show you the last "Dirty Harry" story." Another character in "That Yellow Bastard" story is Nancy Callahan, who is a pastiche or caricature of Harry