Dirty Harry novels of the four first "Dirty Harry" films as tie-ins. Author and screenwriter Phillip Rock wrote the novelization of "Dirty Harry" in 1971, based on an early draft of the script. Mel Valley wrote the sequel, "Magnum Force", in 1973. Wesley Morgan novelized "The Enforcer" in 1976. The "Sudden Impact" novelization was written by Joseph Stinson, one of the screenwriters. Stinson, who had rewritten the originally independent script as a "Dirty Harry" vehicle for Eastwood, adapted the novel in 1983. Following "The Enforcer", Eastwood announced that he would not make any further "Dirty Harry" films (he eventually returned to the role
Dirty Harry the iconic music for both the theme of "" and the "Bullitt" soundtrack, and who had previously collaborated with director Don Siegel in the production of "Coogan's Bluff" and "The Beguiled", both also starring Clint Eastwood. Schifrin fused a wide variety of influences, including classical music, jazz and psychedelic rock, along with Edda Dell'Orso-style vocals, into a score that "could best be described as acid jazz some 25 years before that genre began". According to one reviewer, the "Dirty Harry" soundtrack's influence "is paramount, heard daily in movies, on television, and in modern jazz and rock music". The film caused