The Beach Girls and The Monster (1965)

FreeClassicMovies wrote:Released on September 15, 1965: Teens on Malibu Beach are being killed by a mysterious sea monster.
Directed by John Hall
Written by Joan Gardner, Don Marquis and Robert Silliphant.
The Actors: Jon Hall (Dr. Otto Lindsay), Sue Casey (Vicky Lindsay), Walker Edmiston (Mark), Elaine DuPont (Jane), Arnold Lessing (Richard Lindsay), Read Morgan (Sheriff Michaels), Carolyn Williamson (Sue)

What's Happening: Humanoid fish-monster attacks beach girls and surf guys
Famous For: Inferior imitation of Horror of Party Beach
Imitations of the great Party Beach were inevitable, and Beach Girls is probably the most famous. For a picture intended only to provide cheap thrills at American drive-ins, it's not bad, but it pales in comparison to its wonderful predecessor. Party Beach establishes the characters in the opening scenes, and then alternates attack sequences with drama. It pulses with energy, and offers tension, humor, and surprising moments of fear and gore. Its monsters look weird but also original. Beach Girls is routine, and is virtually devoid of all the above. But for fans of 60s trash cinema, and for fans of Party Beach who want a little extra, Beach Girls is worth an hour's time. Our hero is a surfer guy whose father is a marine biologist. The father's second wife is a scheming lush. A crippled sculptor lives with them. The extended nighttime beach party scene halfway through is the standout. Other scenes feature lots of shaky jiggly dances, the kind that were common in the mid 60s before these folks calmed down with marijuana a few years later.

Goldweber, David Elroy (2012-06-14). Claws & Saucers: Science Fiction, Horror, and Fantasy Film: A Complete Guide: 1902-1982 (Kindle Locations 5106-5110). David E. Goldweber. Kindle Edition.