Hereditary

Factual error: Spoiler: In the scene toward the end of the movie when the dad is burned alive, his skin is completely black but his clothes are still on and intact, just blackened. With fire hot enough to completely blacken the skin, it would have burnt the clothes completely off (or at most they would have been shredded rags). (01:51:25)

odelphi

Audio problem: As Annie is trying to leave Joan's house and she starts to give Annie instructions on how to do the ritual, it's obvious the audio for Joan's lines was dubbed in in post as a lot of her speech doesn't quite match up with her lips. Especially when she's saying "Your whole family needs to be in the house". (01:08:00)

Quantom X Premium member

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Joan: You didn't kill her, Annie.
Annie: What?
Joan: She isn't gone.
(01:08:10)

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Trivia: The voice on the phone from the agent calling Annie discussing her exhibit date at the Archer Gallery is that of the film's director, Ari Aster.

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Question: Not sure this is a movie mistake. When the mom is sawing off her own head, wouldn't the sawing have stopped once she cut through her spinal cord? The muscles in her arms/hands would have gone limp and her head would not completely fall off - though it would fall forward. You don't actually see her head fall but you hear the bang on the floor and her head is missing at the end.

odelphi

Answer: There were supernatural forces at work, so basic rules of human anatomy and physics don't really apply in the situation.

Phaneron Premium member

Answer: When she's sawing off her own head, she's also suspended about 12 feet in the air. Afterwards, you also see the headless mom's body levitating up to the treehouse. So, obviously, there were powerful demonic forces that suspended her in the air, sawed off her head, then carried her up into the treehouse.

Charles Austin Miller

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