When leading lady Beverly Garland got her first look at the titular monster, her sarcastic remark was, "THAT conquered the world?"
Originally, "Beluah" was built as a squat, flat-topped creature, under the mistaken belief that Venus had higher gravity than Earth's. (It doesn't; Venus' gravity is slightly less than ours.) When it turned out not to be imposing enough - and to actually be shorter than leading lady Beverly Garland - a tapering conical top was added to it.
The little bat-like creatures that the monster uses to control people would later be re-used in Roger Corman's next film, The Undead (1957).
Paul Blaisdell's friend Bob Burns restored the costume when it came into his possession long after Blaisdell's death. The photographs of it in his book "It Came From Bob's Basement" reveal it to be beet-red in color.
Shot in five days.