Don't Make Waves is a 1967 American sex comedy (with elements of the beach party genre) starring Tony Curtis, Claudia Cardinale, Dave Draper and Sharon Tate. Distributed by Metro-Goldwyn-Mayer, the film was directed by Alexander Mackendrick and is based on the 1959 novel Muscle Beach, by Ira Wallach, who also co-wrote the screenplay. The film depicts a series of romantic triangles between different groupings of the principal cast and supporting players among several backdrops involving Southern California culture (swimming pools, bodybuilding, beach life, fantastic real estate, mudslides, metaphysical gurus, etc.). Plot Carlo Cofield, a tourist visiting California's west coast, has not even arranged lodging, when his car is smashed by a reckless driver. She is a carefree, attractive Italian artist named Laura Califatti, who offers her couch for Carlo to sleep on that night. This arrangement displeases Rod Prescott, a wealthy swimming-pool builder, because Laura is his mistress. After being kicked out of Laura's, Carlo tries to sleep on the beach and nearly drowns. He wakes up to find a gorgeous surfer, many years his junior, rescuing him by covering his nostrils with her cheek to administer two breaths. She goes by the name "Malibu." Carlo begins a romantic pursuit of Malibu. After renting a house near the ocean, Carlo cons a sweet but naïve bodybuilder, Harry, Malibu's boyfriend, into believing that having sex is harmful to his body. He also bribes a phony psychic, "Madame Lavinia," who is actually a man, to discourage Harry from seeing Malibu any more. Rod decides to give the persistent Carlo a job as a pool salesman. The affair with Laura is discovered by Rod's wife, Diane, who demands a divorce. As a quarrel develops with everyone present, a mudslide caused by a sudden storm makes Carlo's house slide down a cliff. By the time everyone is saved, they pair off with the romantic partners they deserve. Cast Production notes The film was based on Ira Wallach's novel Muscle Beach which was published in 1959. In August 1963 it was announced film rights had been purchased by Martin Ransohoff of Filmways, who had a deal with MGM. Ransohoff and Wallach had collaborated on The Wheeler Dealers. Wallach would do the screenplay and the film would be part of an $18 million slate, coming out in June 1964. Filming was delayed. Curtis' casting was announced in April 1966. In June it was announced Alexander Mackendrick