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Continuity mistake: At the dinner table, the doctor says "My sole concern is for the welfare of my patients." Pay attention to Lockhart during the two following reverse shots: in both those shots the same two elder patients walk by in the background crossing the screen from left to right carrying their plates. (00:46:00)

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Stupidity: During the movie, the bad guys keep the main character alive and free to roam the facility at will (even if they made him sign an incriminating form at the very beginning stating he's an inmate) doing absolutely nothing to restrict his freedom till the very end - he even retains personal effects like his broken Rolex and lighter, his wallet full of cash! He breaks into every forbidden area, picks up fights, damages property, escapes multiple times and 'corrupts' the person the whole facility is built for. He is worth absolutely nothing to them and has nobody waiting for him or that will look for him.

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Continuity mistake: Back after the little adventure at the burg, Hannah gets up from bed. By the window she turns and asks the doctor "When?" and clings to the doll bringing her hands closer, but in the subsequent shot (when Volmer says "Come here") her grip has loosened again and her hands are at distance. (01:23:00)

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Factual error: Speaking with Miss Watkins, the protagonist learns of the backstory of the complex, and how in 1814, the local baron was running all sorts of experiments on "his own peasants." The movie though is set in Switzerland, where the power of nobilty was considerably lower and less traditionally 'feudal' than in most neighbouring countries (and stayed as such even after the Congress of Vienna). In particular this castle supposedly is in the canton of Graubünden (aka Grisons), where within the context of the Three Leagues you'd have been hard pressed finding a 'baron' ruling lands, a radical prohibition of nobility, titles and particles having been enacted, surely with no life and death powers over his serfs.

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Continuity mistake: As the train enters the gallery, a close-up shows the box of Nicorette on top of a left corner of the blister pack. When the camera pans (the voice on the phone mentions Delaware), cardboard and blister are side to side, flat. New close-up when he spits the gum, and the two elements are again one on top of the other before he grabs the blister, putting it then back side to side. (00:04:00)

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Factual error: The license plate of the car that takes the protagonist to the sanitarium is GR 36E46. That's not a valid Swiss plate: GR indicates the canton of Graubünden, but other than that it is supposed to have only digits and no letters.

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Continuity mistake: When Lockhart suggests Hannah give him her bike, in the frontal shot she is holding her hands away from the proper handle position, but they are back in the correct position in the side view. (01:05:10)

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Continuity mistake: When Lockhart sits down to talk to the manager, the glass of water goes from half full to almost entirely full between shots. (00:20:30)

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Revealing mistake: When Lockhart slices his cast open, his missing tooth is just cosmetically blackened. (01:47:00)

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Trivia: When Lockhart is in the sensory deprivation tank, the nurse that does a poor job of keeping an eye on him is reading "Der Zauberberg" by Thomas Mann, which obviously has at that point a common premise with the movie (the main character goes to a sanatorium in the Alps just as a visitor but ends up as an inmate). The novel was inspired by Mann's visit to his wife at a Swiss sanatorium which happened in 1912, same year as the picture fully unveiled in the finale.

Sammo ★