The Man in the Gray Flannel Suit is a 1956 American drama film starring Gregory Peck, Jennifer Jones, and Fredric March, with Lee J. Cobb, Keenan Wynn and Marisa Pavan in support. Based on the 1955 novel by Sloan Wilson, it was written and directed by Nunnally Johnson, and focuses on Tom Rath, a young World War II veteran trying to balance the pressures of his marriage to an ambitious wife and growing family with the demands of a career while dealing with the after-effects of his war service and a new high-stress job. The film was entered at the 1956 Cannes Film Festival.