2010 (1984) - 7 mistakes

Factual error: In the scene where the crew members are doing a simultaneous countdown in Russian and in English, the Russian crewmember skips the number four (chetiri). She goes straight from 5 (pyat) to three (tree).

Continuity: Toward the end of the chat in front of the white house, in a far shot, Dr Floyd crosses his legs. The camera comes in for a close-up and he crosses his legs again.

Other: After speaking with Dave Bowman on her TV, Betty lays her head on the table and we see an obvious cut & paste as her form shifts slightly.

Continuity: Dr. Chandra is in the logic circuits room reactivating HAL. He types words into a computer on the wall opposite the logic circuit panel (panel with the clear plexiglass blocks). In the movie 2001 there was no computer screen there; when Bowman is deactivating HAL you can see the flat metal wall with the red grid on the wall opposite the logic circuits.

Deliberate "mistake": Dr. Chandra returns to the Leonov at the end of the film with the device that Dr. Floyd designed to cut HAL's memory circuits. He hands the device back to Dr. Floyd, who tosses it in the air and catches it when it falls back into his hand. One problem - there was no gravity on the ship at the time. You can even hear a voice over the intercom at the moment he tosses the device into the air announcing that there were 12 more seconds until they started up the rotation (in order to create the artificial gravity).

Continuity: During the "aero-braking" maneuver the force dislodges a photo from Dr. Floyd's wall and stretches his face indicating many Gs. Similarly, the cockpit crew is thrown back into their seats, yet their flimsy microphone headsets are never dislodged from their heads.

Continuity: At one point when Chadra is repairing HAL, HAL starts speaking gibberish. When HAL starts doing this there are 8 blocks sticking out from the floor, but when Chandra stops HAL there are only 4 left.