"Mad Monster Party" 1967 is a stop motion film from Rankin-Bass Productions. This delightful musical comedy brings us movie monsters Frankenstein, Count Dracula, the Mummy, Quasimodo, the Werewolf, Dr. Jekyll and Mr. Hyde, "It" and more as they plan and plot on the Isle of Evil. Baron Boris von Frankenstein voiced by Boris Karloff has perfected the weapon of total destruction. The Baron wants to gather the monsters on the Isle to tell them of the weapon and his upcoming retirement as head of the "Worldwide Organization of Monsters". Alan Swift voices 15 characters including Felix Flanken the Baron's bumbling nephew, Phyllis Diller as the Bride of Frankenstein, Gale Garnett as Francesca the Baron's assistant, and Ethel Ennis who sings the title song all create a fun movie. We learn that events don't go well when this crew inhabits the Isle of Evil. Enjoy!

Here’s the IMDB page for “Mad Monster Party”

Up next is “Capricorn One” part of our Paranoia & Conspiracy Film Festival