In one POV, the homeless man is in the back of the officers car until dark- until the point when the officer, who is clearly possessed, charges the car and drags him in the house. Yet, in another POV, Alex comes home from school during the day, notices the cruiser, and then sees the homeless man possessed inside his house. Alex would have noticed the cruiser when leaving for school in the morning OR the homeless man would still be inside the cruiser.
The film is set in Pennsylvania where liquor can only be purchased in "State Stores". You can also buy wine in the state stores, but beer is purchased at package goods stores, bars or some supermarkets. Nowhere in PA can you buy liquor and beer at the same place.
Ms. Gandy's 3rd grade class is studying whales, as seen on the board in the back of the classroom. The board spells the toothed whale parvorder odontoceti incorrectly as "odontceti."
In the finale, when Aunt Gladys is running, she passes a set of tall palm trees, which do not grow in Pennsylvania. There are also shots of tropical bushes in front of some of the homes, which would not survive the harsh winters.
Amidst a major criminal investigation regarding an entire class of children that went missing save for one child, which even involves federal law enforcement agencies, nobody ever pays any attention whatsoever to the fact that the remaining child's story that his father recently had a stroke is not backed up by any medical records in any hospital, clinic or emergency services, nor does anybody working for any of those law enforcement agencies supposedly investigating the case ever attempt to secretly monitor the remaining child's home in case he might get abducted as well.