Dirty Harry local and federal police committing offences and overstepping their authority by entrapment and obstruction of justice. Author McGilligan, argued that America needed a hero, a winner at a time when the authorities were losing the battle against crime. The box-office success of "Dirty Harry" led to the production of four sequels. In the 2007 film "Zodiac", also set in San Francisco and inspired by the Zodiac Killer, cartoonist Robert Graysmith approaches police detective Dave Toschi at the cinema, where he is watching "Dirty Harry" with his wife. When Graysmith tells Toschi he is going to catch the Zodiac killer, Toschi
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