- Blooper: George's gun changes from a Colt Pocket Hammerless to a Luger between shots.
- Completely Different Title:
- Japan: Sun Monster
- Russia: Terrible Solar Monster
- Dyeing for Your Art: Actor-director Robert Clarke suffered immensely in the monster costume - his pants are literally soaked in sweat in some scenes; par for the course for anyone playing a rubber-suited monster in The '50s.
Trivia / The Hideous Sun Demon