Trivia: This Island Earth
- The Metalunian mutant's blood was not ordinary fake blood, but actual tomato ketchup, which started to go off under the hot studio lights.
- Hey, It's That Guy!: Steve Carlson is played by Russell Johnson, The Professor from Gilligan's Island.
- Name's the Same: Don't confuse Exeter with the English city, or Brack with Brak.
- Or indeed Barack...