The somewhat…hopeful poster for the film, of course, suggests a much elaborate, effects-heavy, frightening film than then-novice horror director Edward L. Cahn could manage — especially with Curt Siodmak’s script and Katzman’s budget. That it also claims to be based on “scientific fact,” on the other hand, is less wishful thinking than outright lying. But after all, it was early days for Katzman’s Clover Productions (later, he imaginatively would change the name to Four Leaf, fooling no one). It also marked Sam’s return to rock-bottom horror since the memorable Bela Lugosi “Monogram Nine” in the first half of the 1940s. While this batch would never reach the loopy heights of those glory days, it at least offered a similarly audience-contemptuous ethic that created a slapdash charm. Defensible as art? Good heavens, these aren’t even defensible as competent junk.
Creature with the Atom Brain — perhaps the most threadbare of the lot in production values — could almost be accused of verging on coherence. By that I mean that the story moves ahead in a straightforward manner as concerns its telling. It should, however, be obvious from the earlier description of the story elements that this concession to the basics of construction hasn’t the slightest impact on pesky things like logic, believability, common sense, or rational behavior. (Let’s leave science out of this altogether.) The strange thing is that it’s only because of the lack of logic, believability, etc. that we’re still watching the silly thing.