Other mistake: After the fire extinguisher was sprayed to put out the flame on the wall painting, there should have been some debris or markings to reflect the use of the extinguisher, but there were no obvious indicators. (00:24:50)
Separation (2021)
1 other mistake - chronological order
Directed by: William Brent Bell
Starring: Rupert Friend, Violet McGraw, Madeline Brewer
Genres: Horror
Revealing mistake: When Grandpa Paul Rivers (probably a substitute of some kind) was falling (pushed) down the stairs, his body was "floating" and not actually making contact with the steps. (01:33:30)
Trivia: It may be difficult to tell based on her acting "skills", but Mamie Gunner ("Maggie Vahn") is Meryl Streep's daughter. The lesser-known Don Gunner is Mamie's father.