The role now forever associated with actor Clint Eastwood – the lead in "Dirty Harry" – was originally supposed to go to, of all people, Ol' Blue Eyes – singer and actor Frank Sinatra. But Sinatra had hurt his wrist filming "The Manchurian Candidate" years earlier, and the gun he would have used in the film was too heavy for him to hold. Actors Steve McQueen and Paul Newman both passed on the part before it finally went to Eastwood.

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