Other mistake: Towards the film end, when George climbs up stairs with the gun to kill others, he walks into the passage and shuts the door. A mirror is there in the passage, but there's no reflection of George in it. (01:15:15)
Other mistake: The type of pan George uses to make eggs is far more modern a design than when the movie is supposed to take place in the late 70's.





Suggested correction: While this is true in the original novel, the writers chose to change it to the DeFeo's daughter's name in the movie. Creative license doesn't count as a mistake.
Torie White
Except that this is based on the real-life incident of the DeFeo family. This entry is not applied to the novel.