* The Metalunian mutant's blood was not ordinary fake blood, but actual ''tomato ketchup'', which started to go off under the hot studio lights.
* NamesTheSame: Don't confuse Exeter with the English city, or Brack with [[WesternAnimation/TheBrakShow Brak]].
** Or indeed [[UsefulNotes/BarackObama Barack]]...
* RetroactiveRecognition: It would be decades before Creator/ColemanFrancis became a BMovie personality. He appears briefly as a postman in the film.
* While a science fiction movie instead of horror, the Metaluna Mutant has been included in some sets of [[Franchise/UniversalHorror Universal Monsters]] merchandise.