Other mistake: In the opening credits, Lewis Carroll is spelled incorrectly, as 'Carrol'. (00:00:30)
Other mistake: When the captain comes face-to-face with the Thing for the first time, the upper right frame becomes blurred once the door starts opening until it closes followed by a scene change. Very odd except maybe they were trying to hide the minicharges to create the bullet holes after they close the door. The implanted charges are very visible when the scene is not blurred. Also there is a small charge in the wooden frame of the door near the door handle. (00:57:32)
Other mistake: When Farley Granger sneaks out of his flat to go to Robert Walker's house, there is an EXIT sign over the door. Maybe in a theater or cinema, but in a private apartment?
Suggested correction: 1) This only appears in the preview version of the film, not the final version. 2) Why would an apartment building not have an exit sign? Can you cite a reference for this? I would think someone making a contemporary film would notice if it was such an obvious error you think it is.
Other mistake: When one of the Christians is being crucified and burnt, we can see that just after the man's "death" the body is substituted by a plastic doll covered in red paint.
Other mistake: The day after informing Lady Barbara that he was married, Hornblower, in a rush to get home, orders the t'gallants set. But the ship, as shown in the prior scene, already has them set.
Other mistake: In the opening titles, Irven Spence's first name is incorrectly credited as Irvin.
Other mistake: In all of its appearances, the British flag (also known as the Union Flag and the flag of the United Kingdom) is wrong. The flag's X-shaped red Cross of Saint Patrick is shown as (a) wide, and (b) centered on its white background, whereas on the actual flag, it is (a) thin, and (b) not centered on its white background, but rather off-center in a counter-clockwise direction.
Other mistake: When Clift stops rowing, you can still see apparent boat movement in the backdrop film of the lake, more than you could attribute to forward momentum.
Other mistake: A brief section of the film was flipped. One building has a sign saying "FIREARMS" and the lettering is in reverse.
Other mistake: Lock Martin is not wearing his Gort glove on his right hand in the first frame of him carrying Patrica Neal.