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Revealing mistake: When the Enterprise begins to leave the spacedock, the background inside spacedock (behind Enterprise) seems to move in two different directions, the top moves towards the right, the bottom towards the left.

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Trivia: Just before Kirk tells Scotty to open the bay doors of the Enterprise, a beeping sound is heard inside the shuttlecraft. This same sound effect is heard inside the Russian spacecraft during the probe scene in 2010: The Year We Make Contact.

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Revealing mistake: When Spock is on Vulcan, it is blatantly obvious the actors playing the Vulcan elders are speaking English with a bad dubbing.

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Trivia: If you look at the Kholinar necklace Spock was to be given when he was on Vulcan it bears a striking resemblance to the Enterprise, especially when it is laying on the ground before Spock picks it up.

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Revealing mistake: When the ship breaks the wall outside the geode chamber we see the rock reform and harden as soon as the ship is through, so how could the magma leak into the geode if that rock had already hardened?

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Trials and Tribble-ations - S5-E6

Question: Wouldn't Sisko have created a paradox by identifying himself by his real name to James T. Kirk before returning to the future?

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Revealing mistake: When Rambo destroys the POW camp with the helicopter, the same hut blows up 3 times, (you can tell by the v-shaped flames).

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Trivia: Other than the "absent friends" toast to Data at the end of the film, Dr. Crusher is nowhere to be seen in the final 40 minutes of the film after Picard orders battlestations.

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Continuity mistake: Spaceball-1 is using a blue tractor beam to bring in Vespa's car, but when Barf opens the roof to rescue the girls, the blue light is nowhere to be seen.

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Continuity mistake: When Harry and Gibb realize they are being followed by the station wagon, they and the terrorist pull over in front of the sidewalk twice.

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Question: How could Harry have known what floor the terrorist leader was going to get off on during the hotel chase sequence?

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Question: If the shields on the collector were down while Data was flying the Captain's Launch, why not use that ship to destroy the collector?

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The Man Trap - S1-E2

Revealing mistake: Just after Kirk stuns Crater with his phaser, he gets up to get to Crater, when he does he bumps into a heavy stone monument,a prop that shakes visibly on contact. (00:36:58)

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Revealing mistake: The underground crystal chamber is completely encased in a cobalt shell, yet a light source has to come from somewhere to allow all the crystals to reflect in the dark. The light from the ship wouldn't have been enough to make them all reflect and the magma had not yet breached the ceiling.

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Revealing mistake: When Agent XXX releases the mine under the Lotus, the shadow of the car can still be seen over the mine as it explodes, which should have left the car damaged at such close range.

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Space Seed - S1-E23

Revealing mistake: Just before Kirk and Khan fight in Engineering, Khan bends Kirk's phaser pistol in half, but the small hand phaser on top is still functional.

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Plot hole: Ash makes an effort to keep both the back and front doors closed so Cheryl can't get in, but nothing is stopping her from using the two broken windows.

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Revealing mistake: "Q" says Bond has to activate the homing device by pressing it, but he doesn't press it, he pulls it back.

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The Squire of Gothos - S1-E18

Revealing mistake: Just before Kirk finds himself in Trelane's "courtroom", look behind Kirk on the bridge above Spock's work station. The viewscreen with the planet on it is actually a piece of paper that's coming away from the wall.

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Plot hole: An American battleship with an active supply of nuclear warheads on its missiles would in no way allow a helicopter full of strangers to land and deploy without those men being screened for any weapons by the security guards on the ship (even if Krill already knows).

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