Clambake is a 1967 American musical film directed by Arthur H. Nadel and starring Elvis Presley, Shelley Fabares, and Bill Bixby. Written for the screen by Arthur Browne Jr., the film is about the heir to an oil fortune who trades places with a water-ski instructor at a Florida hotel to see if girls will like him for himself, rather than his father's money. Clambake was the last of Presley's four films for United Artists. The movie reached No. 15 on the national weekly box office charts.