The First Motion Picture Unit (FMPU), later 18th Army Air Forces Base Unit, was the primary film production unit of the US Army Air Forces (USAAF) during World War II and was the first military unit made up entirely of professionals from the film industry. It produced more than 400 propaganda and training films, which were notable for being informative as well as entertaining. Films for which the unit is known include Resisting Enemy Interrogation, Memphis Belle: A Story of a Flying Fortress and The Last Bomb—all of which were released in theatres. Veteran actors such as Clark Gable, William Holden, Clayton Moore, and future President Ronald Reagan and directors such as John Sturges served with the FMPU. The unit also produced training films and trained combat cameramen. FMPU personnel served with distinction during World War II.