The Conversation (1974)

A paranoid, secretive surveillance expert has a crisis of conscience when he suspects that the couple he is spying on will be murdered.

Director: Francis Ford Coppola

Cast: Gene Hackman, John Cazale, Allen Garfield, Frederic Forrest, Cindy Williams, Michael Higgins, Elizabeth MacRae, Teri Garr, Harrison Ford, Mark Wheeler, Robert Shields, Phoebe Alexander, Ramon Bieri, Gian-Carlo Coppola, George Dusheck, Robert Duvall, Richard Hackman, George Meyer