Muscle Beach Party 1964 is the second of seven beach party films produced by American International Pictures. It stars Frankie Avalon and Annette Funicello and was directed by William Asher, who also directed four other films in this series.
Frankie, Dee Dee, and the beach party gang hit Malibu Beach for another summer of surfing and no jobs only to find their secret surfing spot threatened by a gang of bodybuilders, led by the dimwitted coach Jack Fanny Don Rickles.All the while, a bored Italian Countess Luciana Paluzzi is trying to steal Frankie from Dee Dee and, much to everyones surprise, he seems more than happy to go along with it. Shes going to turn him into a teen idol, not unlike Frankie Avalons reallife persona. ........
Source: Wikipedia