This was originally a 12 chapter serial that was later edited into a feature-length film. It is included in the TALES OF TERROR 50 MOVIE PACK and runs about 1 hour and 15 minutes. The soundtrack has a hiss from beginning to end, but you can still clearly hear the awful dialogue.
Bela Lugosi stars as the brilliant Dr. Zorca who tries to take over the world with an invisibility belt, a ray gun, and a ponderous metal robot. Bela hatches his evil plans in a great-looking, cheapo secret cave / laboratory. My favorite part is when Bela and his henchman fly around in a bi-plane while Bela drops explosives out of the cockpit. Every time he drops an explosive, you see stock footage of a naval ship, a building . . . even the Hindenburg . . . exploding. Nice aim, Bela!