Wild on the Beach (1965)

Adam Miller and Lee Sullivan both lay claim to a beach house for student boarders. Problems arise when both boys and girls show up to live there. They're soothed by the music of Sonny and Cher, Jackie and Gayle, Sandy Nelson, and the Astronauts. By the time the movie ends, you feel as though you've gotten to know all the actors personally, and the bands have been playing in your living room all night.