
Cast: Lee Marvin, John Cassavetes, Angie Dickinson, Ronald Reagan, Clu Gulager, Claude Akins, Norman Fell.
Screenplay: Gene L. Coon,
based on a story by Ernest Hemingway.
Cinematography: Richard L. Rawlings.
Art direction: Frank Arrigo, George B. Chan.
Film editing: Richard Belding.
Music: John Williams.