The 1963 Roger Corman film
- Cult Classic
- Nightmare Fuel: Despite the movie being cheap even by Corman standards, it still manages to build up a decent, creepy atmosphere.
- So Bad, It's Good: It's exactly the type of movie you'd expect from Roger Corman.
- Took the Bad Film Seriously: Boris Karloff and Jack Nicholson. As James Rolfe noted in his Monster Madness review of the movie, you wouldn't expect the latter to be the famous actor he eventually became if one only knew him from The Terror.