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 on December 22, 1971. The film was the fourth-highest-grossing film of 1971, earning an approximate total of $36 million in its U.S. theatrical release, making it a major financial success in comparison with its modest $4 million budget. Warner Home Video owns rights to the "Dirty Harry" series. The studio first released the film to VHS and Betamax in 1979. "Dirty Harry" (1971) has been remastered for DVD three times — in 1998, 2001 and 2008. It has been repurposed for several DVD box sets. "Dirty Harry" made its high-definition debut with the 2008 Blu-ray Disc. The commentator on the