Good Neighbor Sam (1964)

To help his divorced neighbor claim a substantial inheritance, a family man poses as her husband. The ruse spills over into his career in advertising, and his recent promotion relies on his wholesome and moral appearance.

Director: David Swift

Cast: Jack Lemmon, Romy Schneider, Dorothy Provine, Mike Connors, Edward Andrews, Louis Nye, Robert Q. Lewis, Joyce Jameson, Anne Seymour, Charles Lane, Linda Watkins, Peter Hobbs, Tristram Coffin, Neil Hamilton, Riza Royce, William Forrest, The Hi-Los, Edward G. Robinson