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Continuity: When Mike is speaking with Olin the first time, Olin has a handkerchief in his chest pocket, and two 'points' stick out. But after Olin tells Mike that he thought the "father was a bastard", there are three points sticking out for the rest of the conversation, even through the elevator ride.
Continuity: As Mike scrolls through the microfilm, we see his view as the pages scroll from right to left. The shot then reverses to show his face through the scrolling film, but while the film is now properly reversed, it's still moving right to left in our view. But this reversed angle should show it moving left to right.
Continuity: When Mike steps off the elevator, he is between the elevator doors and a dark statue in the middle of the hallway. The statue is seen behind him, slightly to our right. When the elevator doors close, Mike's location is different as he begins to walk down the hall. Relevant to the earlier shot, he is much further to our right and farther from the elevator doors, as now has to walk around and past the statue he was originally already past.






