The Killer Elite is a 1975 American action thriller film starring James Caan and Robert Duvall and directed by Sam Peckinpah.The screenplay was written by Marc Norman and Stirling Silliphant adapted from the Robert Syd Hopkins novel, Monkey in the Middle. The novel was written under Hopkins' pseudonym of Robert Rostand. The film represents the last collaboration between Peckinpah and soundtrack composer Jerry Fielding.