Deliberate mistake: Though by 1964 it was already suspected (and later confirmed by Mariner IV) that Mars has an atmosphere humans can't breathe and temperatures too low for humans to tolerate, Merritt and his crew are here exploring the planet sans spacesuits. This was "fudged" because space helmets A)are expensive, B)reflect cameras, and most importantly, C)obscure the actors' faces. (00:24:00)

The Outer Limits (1963)
1 deliberate mistake in The Invisible Enemy
Continuity mistake: In the lab, the alien's arms change positions instantaneously between shots. (00:13:50)
Andro: Better to die than to sit and watch the world die.
The Forms of Things Unknown - S1-E32
Trivia: This is the only Outer Limits episode that lacks both opening and closing narration. It was absent because "Forms" was the unsold pilot for a series called The Unknown. A second version, stripped of all its supernatural elements (Tone was simply a mad scientist, not a real time traveler), also failed to sell.
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