Django Unchained
A third one for the history side, but even regular folks should have seen this blooper the minute it appeared, at least anyone who took American history that is. Django Unchained was set in the mid 1800s in the Civil War era where the main character is an escaped slave. Yet here is in the film sauntering around with sunglasses. While regular eyepieces did exist, no one had figured out yet how to polarize lenses much less shade them for the sunglasses effect. Maybe he took them from a Southern inventor he came across.
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