Visible crew/equipment: While the winding road up the "bump" is being built, Ram is on the radio updating on the Legion's movements, and he says, "They're moving up hill 49, half a mile from our road." At the very start of the next shot when it cuts to Magda, Marcus, and Asher at the jeep, we can see the film crew's clapperboard in front of Kirk Douglas, as it swiftly moves offscreen at the bottom right side of screen. (02:04:10)
Continuity mistake: When Lucy awakens at 4:00 AM she checks on Linus and then puts him to bed. In some shots there's a window over Linus' bed, but in other shots the window has vanished, and there's only a shelf over the bed. (00:23:10)
Visible crew/equipment: As the Batcoper emerges from its hangar, multiple crew and equipment are reflected in the cockpit's glass bubble. (00:04:05)
Continuity mistake: When Blondie abandons Tuco in the desert, watch the rope around Tuco's neck. It changes between shots, sometimes over his left shoulder, and sometimes hanging down in front of him. It is not due to the camera angle. (00:28:27)
Revealing mistake: When the stagecoach driver gets hit with an arrow, it springs up from below into a horizontal position. (00:33:55)
Continuity mistake: Under the shower, Alva holds the envelope Owen gave her in two different ways that keep switching, depending on which take they used in editing. (01:19:05)
Visible crew/equipment: When Thomas drives his car at the beginning of the film before speaking at the radio, the cameraman is reflected on the windscreen and its shadow can also be seen on the left. (00:04:40)
Other mistake: When the Grinch rides his sleigh back to Whoville and returns everything, as the narrator says, "He brought back their pantookas," a pink ornament lands on the Christmas tree, then changes to yellow mid-shot.