"And as to the zombies themselves, he says that "The make-up effect consists of a coating of plaster over the face and neck (which apparently doesn't reflect decomposition, since it appears so quickly" and quotes James O'Neill as referring to them in his book "Terror on Tape" as "bug-eyed, crud-faced zombies".Tenney's original intent was to release the film - then known as "Zombies" - on a double-bill with "Frankenstein Meets the Space Monster".