OK, I watched 20'000 LEAGUES UNDER THE SEA, MYSTERIOUS ISLAND, and CAPTAIN NEMO AND THE UNDERSEA CITY, and they were good. But this one is pretty poor. Yet it was kind of silly, and a little cartoonish. The professor gets hit, and you here a "Buh-oooiii-iiinnnggg" kind of noise (hey I heard that noise in SESAME STREET). The monsters in this film are pretty bad and lame. You see beasts that look like a combination between the gill man and a baboon. A big monster that looks like a combination between an allosaurus and a gorilla (how did they do that, a man in a suit, a robot)?
Weird. Glops of sea weed that come to life. It looks like a bunch of SIGMUND AND THE SEA MONSTERS rejects. And caterpillers that blow steam. I thought this was a "creatures from lost worlds" kind of fantasy, but at the end, everything was joke island. The music in certain scenes like the chase scenes with the thieves sounded like cartoon music of the early 80's. The set where the hero and company were chased in a cave resembles the cave from the 1960 remake of THE LOST WORLD. Since the movie was called JULES VERNE'S MYSTERY ON MONSTER ISLAND, how come you see beautiful birds or harmless monkeys. I was expecting some prehistoric life forms. As Blockbuster Video Movie Guide says, "stick to MYSTERIOUS ISLAND". This film (like KING KONG ESCAPES) is not available on video, but you can tape it on the Sci-Fi channel.