The Apartment is a 1960 American romantic comedy-drama film directed and produced by Billy Wilder from a screenplay he co-wrote with I. A. L. Diamond. It stars Jack Lemmon, Shirley MacLaine, Fred MacMurray, Ray Walston, Jack Kruschen, David Lewis, Willard Waterman, David White, Hope Holiday and Edie Adams. The story follows C.C. "Bud" Baxter (Lemmon), an insurance clerk who, in the hope of climbing the corporate ladder, lets more senior coworkers use his Upper West Side apartment to conduct extr