Factual error: Dominic Wingrave says "it took me 6 years to do the math." Not something any British person would say - in the UK it's always "maths."
The Haunting of Bly Manor (2020)
1 mistake in The Altar of the Dead
Starring: Andrew Neil McKenzie, Victoria Pedretti
Trivia: The character of Dani Clayton is named after Jack Clayton, who directed "The Innocents." "The Innocents" is the film adaptation of the stage version of Henry James' "The Turn of the Screw." (Source: ScreenRant).