The Horse in the Gray Flannel Suit is a 1968 American comedy film directed by Norman Tokar, with a screenplay by Louis Pelletier and starring Dean Jones, Diane Baker, Ellen Janov, Kurt Russell and Lurene Tuttle, as well as Fred Clark in his final film appearance (he died 2 days after it was released). It is based on the 1965 book The Year of the Horse by Eric Hatch. The film's title is a humorous reference to the titular horse's color and the title of the 1955 Sloan Wilson novel (and 1956 film) about the American search for purpose in a world dominated by business, The Man in the Gray Flannel Suit.