Midway through shooting, Franchot Tone got into a brawl that left him with facial abrasions on one side so severe they couldn't be covered with make-up. So, in the "glass room" scenes, shots of him are, bizarrely, in profile only or taken from behind barriers obscuring half his face. Some profile shots were reversed to create the illusion that in various takes, we were seeing both sides of him. See more...
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Continuity: When Cadwallader puts a seal on the Escape Clause paper, he presses so hard that he manages to lift the whole document with seal. You can see that there is absolutely nothing except for a seal mark on the paper, yet when he drops the paper to the floor some typed text appears on it. Also in the same scene, the seal pattern is square in the first shot, but when the paper drops to the floor the seal mark is round.