You're in the Navy Now is a Hollywood film released in 1951 by Twentieth Century Fox about the United States Navy in the first months of World War II. Its initial release was titled USS Teakettle. Directed by Henry Hathaway, the film is a comedy starring Gary Cooper as a new officer wanting duty at sea but who is instead assigned to an experimental project without much hope of success.
Filmed in black-and-white aboard PC-1168, an active Navy patrol craft, You're in the Navy Now featured the film debuts of Charles Bronson, Jack Warden, Lee Marvin, and Harvey Lembeck in minor roles as crewmen. Screenwriter Richard Murphy was nominated by the Writers Guild of America for "Best Written American Comedy", basing his script on an article written by John W. Hazard in The New Yorker. Hazard, a professional journalist and naval reservist, had served during World War II as executive officer of the PC-452, a similar craft that served in 1943-44 as a test bed for steam turbine propulsion.