Approved | | Horror, Sci-Fi
Allied Artists Pictures released this film on a double bill with Not of This Earth (1957) to many drive-in theaters with the tag line "Terrorama! Double Horror Sensation!"
And the Lord said, I will destroy man whom I have created from the face of the earth; both man, and beast, and the creeping thing, and the fowls of the air; for it repenteth me that I have made them.
Although Ed Nelson's character is listed in the credits as Ensign Quinlan, he is referred to by Dr's Hunter and Weigand as Lieutenant Quinlan.
This was one of a group of films for which Allied Artists prepared a modified version for U.S. 16mm television syndication prints. These prints started off with a lengthy clip from the movie and added an introductory crawl. This extra padding brought the film's running time up to approximately 70 minutes.