THIS ISLAND EARTH 1955 (UNIVERSAL)

Scientists are kidnapped and taken to a distant planet called Metaluna so they can help the planet during a nuclear war.
Jeff Morrow is the alien named Exeter who actually sides with earth people Rex Reason and the gorgeous Faith Domergue.
The special effects are top notch and the color photography is perfect. All the sci-fi gadgets of the day are cool to see including the Interociter which Reason builds with his assistant.
Very cool 50's sci-fi and get a load of the mutants with the exposed brains. Awesome stuff indeed. Recommended!!