Other mistake: Henry and Peter got on the school bus in the morning and Susan picked them up after school. Parents often drive their kids to/from school, even when busses are available. Busses usually aren't available for students within short walking distances to school. The day Peter looked "lost" when school let out, Christina walked him home. This indicates the school is close - close enough that Susan wouldn't need to speed to home and back during the talent show or take 45 minutes to execute the plan. (00:02:48 - 00:51:39)
The Book of Henry (2017)
Ending / spoiler
Directed by: Colin Trevorrow
Starring: Naomi Watts, Jacob Tremblay, Jaeden Martell
Glenn commits suicide (shoots himself at home during the talent show) and a judge orders that Susan becomes Christina's permanent legal guardian. Susan reads her published children's book to Peter and Christina, who are temporarily sharing the bedroom (until another room is painted). It is bedtime, so as Susan is leaving the bedroom, she asks "On or off?" (lights), to which both kids say "on." Then, "Open or closed?" (door), and the kids both say "closed." [Henry and Peter used to give opposite answers when asked these questions].
More mistakes in The Book of Henry
Susan Carpenter: I need a Nemesis Vanquish 7.62 with a Litton Ranger Night Vision scope, a suppressor and three extra ten-round detachable mags. Think you can handle that, or should I take my business elsewhere?
Big Ed: Suppressors are illegal for civilian use.
Susan Carpenter: Let's see what Dominic has to say about that? Yeah, Dominic. Look, chief, all due respect, I got a plane to catch. So why don't you just name your price and I'll get out of your hair?
More trivia for The Book of Henry
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