"The Horror of Party Beach" was directed by Del Tenney. His career began as an actor, working at the Los Angeles State College, appearing as an extra in films such as "Stalag 17" and "The Wild One". After moving to New York to act professionally, he worked as an assistant director in exploitation films, including "Satan in High Heels". Tenney was approached by producer Alan Iselin, whose family owned drive-in theaters in Albany, New York, to make a double feature for drive-ins. He offered to put up $50,000 and come up with the titles and pressbooks if Tenney would also contribute $50,000. The titles Iselin created were "The Curse of the Living Corpse" and "Invasion of the Zombies". The original scripts for both films were written by Tenney and his wife Margot Hartman. Unlike most beach party movies filmed to that time, "The Horror of Party Beach" was shot in black and white and on the Atlantic coast, with the primary filming site being the Shippan Point area of Stamford, Connecticut. The biker gang in the film was portrayed by the Charter Oak Motorcycle Club (described as being "affiliated with, but...a step beneath, the Hells Angels") of Riverside, Connecticut.