Revealing mistake: During the Mutants' escape, while they're attacking others in the Citadel some of their rubber bald caps come loose, and we can see the caps' edges over their hair/heads.
Beyond the Time Barrier (1960)
1 revealing mistake
Directed by: Edgar G. Ulmer
Starring: Arianne Ulmer, Boyd 'Red' Morgan, Darlene Tompkins, Robert Clarke, Stephen Bekassy, Vladimir Sokoloff
Genres: Sci-fi
Continuity mistake: After Major Allison's return, when he's in the OR with Dr. Richman he's lying shirtless on a gurney, but in Allison's closeup he's wearing a pajama top and there's a slatted headboard behind him - which is a shot taken from a later scene in his hospital room.
The Supreme: You are from a nation of speaking people. How glorious that must be! Our society is less fortunate.