Factual error: The opening shot is of a somewhat long and quite high bridge with an equally high waterfall behind it. After a couple views of the surroundings, Henry and Peter are standing in the middle (portion) of a stone barricade/wall (extension of the bridge?) with a huge lake behind it, waiting for the school bus. There's absolutely no legitimate or rational reason for such a location to be a school bus stop! School bus stops always have safety in mind, and this bus stop is anything but safe. (00:02:32)

The Book of Henry (2017)
1 factual error - chronological order
Directed by: Colin Trevorrow
Starring: Naomi Watts, Jacob Tremblay, Jaeden Martell
Continuity mistake: In the treehouse, the contraption Henry built releases icing in a pile onto the top of the cupcake (or brownie) Peter is holding. When Peter moves the cupcake to his mouth, the icing is evenly spread in the middle. (00:07:04)
Susan Carpenter: OK... Fuck it.
Peter Carpenter: You're not supposed to swear in front of me.
Trivia: Although relatively rare and quickly dwindling, there are still some (100,000?) functional payphones (coin-operated or credit card) in the US, including in New York. It is doubtful there would be one outside of Henry's elementary school, but pay phones are typically near public buildings.
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