- HD 1080
- Runtime: 90m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: Norman Taurog
- Stars: Frankie Avalon, Deborah Walley, Cesar Romero, Fred Clark, Gale Gordon
- keywords: musical, astronaut, chimpanzee
- Production_studio: American International Pictures
- Slogan: It's the FUNNIEST Collection of NUTS Ever Assembled on a LAUNCHING PAD!
- providers: Amazon Prime Video, fuboTV, Epix Amazon Channel, MGM Plus Roku Premium Channel, MGM Plus, Amazon Prime Video with Ads
- The Sergeant Deadhead is featured in the top rankings of 1965
- #82 in Top Comedy Movies of 1965
An astronaut goes into space with a chimpanzee. When they return to Earth after their orbit, it is discovered that the chimp has the brains of the astronaut, and the astronaut has the brains of the chimp. Complications ensue.