Best sci-fi movie revealing mistakes of 1973

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Soylent Green picture

Revealing mistake: The sliding door to the bedroom in Simonson's apartment appears to be covered with a sheet of 'bubble wrap' in early scenes of the room.

Badbird

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Godzilla vs. Megalon picture

Revealing mistake: Near the beginning, Megalon steps out from behind a mountain. It's obvious the "mountain" is a cardboard cutout.

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More Sleeper revealing mistakes

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