Factual errors: There are a number of inconsistencies in the apartment demolition scene. After seeing a man appear in the apartment partially wrecked by their front-end loader, the demo crew foreman shouts "stop the crane," which would only be appropriate if they were using a wrecking ball instead. Demo crews would never start work at an incorrect address - the site was obviously not prepared for wrecking, there were no permits posted, and the demo plan would not have matched the configuration of the "wrong" building (OK, so this is a conceit of the movie, we can suspend the disbelief for this one.) Also, the front end loader would not have been stopped for so long after tearing out the first chucks of the apartment. Yes, after seeing an occupant, work would stop immediately, but there was an overly long stop period before they see Harold Crick. (This can also be the writer's conceit, but it truly doesn't fit the situation.)
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