Continuity mistake: After Chris puts her to sleep and walks down the steps, Willi the maid is cleaning up Regan's mess on the living room carpet from the previous party scene. We saw a nice close-up of the wet carpet as it happened and now Willi is not even close to cleaning the right spot. In fact she's kneeling right on it, yikes. (00:44:20)
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The Exorcist (1973)
141 mistakes
Directed by: William Friedkin
Starring: Max von Sydow, Ellen Burstyn, Lee J. Cobb, Linda Blair, Jason Miller
Regan MacNeil: You're going to die up there.
Trivia: The vomit that Linda Blair spewed was actually split-pea soup. Specifically, the effects crew decided to use Anderson's split-pea soup because Campbell's split-pea soup wasn't green enough.
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Answer: It was indeed Pazuzu, he wanted Regan to believe he was some friendly entity to gain her trust. Thus the Captain Howdy facade.