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.

Directed by: David Swift

Starring: Jack Lemmon, Romy Schneider, Dorothy Provine, Mike Connors, Edward Andrews, Louis Nye

Links: Columbia Pictures, IMDb, Movie posters, Movie stills