Character mistake: The prescribing doctor or a nurse should have given Matt/Joey's mom instructions on the proper use of an oxygen mask, but she did not demonstrate this. She picked up the mask, put it over her nose/mouth, and immediately inhaled ONCE followed by removing the mask. About a minute later, she repeated these ineffective steps. Instead of inhaling the oxygen, she was most likely simply inhaling "regular air" in the room - she did not keep the mask on long enough to enable release of oxygen.

Don't Tell a Soul (2020)
1 character mistake - chronological order
Directed by: Alex McAulay
Starring: Rainn Wilson, Mena Suvari, Jack Dylan Grazer, Fionn Whitehead
Factual error: The manner in which "Hamby" fell into the hole (or well) did not reflect physics or reality. He was running/chasing Joey and Matt. Whenever one walks or runs, one's feet are never straight down together (like standing), so only one foot could have been over the hole or failed to clear it. Hamby should have tripped and fallen over (face forward) with his upper body landing past the hole. This should have kept him from falling straight down into the hole (as if dropped from above the hole).
Trivia: Many people are familiar with the "Stockholm Syndrome" wherein hostages or kidnapping victims develop a connection with their offenders - they identify with or feel empathy for the people holding them captive. The "Stockholm Syndrome" is also known as "capture bonding." Its lesser-known opposite (or inverse) is called the "Lima Syndrome" - the hostage-takers or kidnappers start identifying with or "feeling for" their victims; they bond. This movie portrays BOTH, but with a different crime.
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