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Fan Nickname: "The Breast of Yucca Flats" for the random topless scene at the beginning.
Hey, It's That Guy!: Tor Johnson! Furthermore Tony Cardoza is not only one of the KGB men, but the helpful neighbor guy at the end, and the guy run off the road is Joe from The Skydivers.
Joining Johnson is Conrad Brooks, another Ed Wood regular and "the John Gielgud of bad movies", according to The New York Times.
Throw It In: The Beast was supposed to die at the end of the film. However, a wild rabbit walked onto set and Tor Johnson got up and kissed the rabbit. Francis liked the scene so much he made into the final shot of the movie. Possibly the one choice he ever made that improved one of his films.