The Apartment is a 1960 American romantic comedy film, produced and directed by Billy Wilder from a screenplay he co-wrote with I. A. L. Diamond, starring Jack Lemmon and Shirley MacLaine. The supporting cast are Fred MacMurray, Ray Walston, Jack Kruschen, David Lewis, Willard Waterman, David White, Hope Holiday, and Edie Adams.The story follows C. ..