Continuity mistake: After Sally collapses on the trip her friend brings her bags in and is holding them with 2 hands. However when the shot changes she has them in just one hand.
Continuity mistake: When playing pool before discussing the papers the balls all change place instantly.
Factual error: On the Yorkshire Post front page it says "Monday 7th March 1974", but that was a Thursday.
Continuity mistake: At the end, the heater is on a chair when Sally chucks the locket on to it. After the spirit has been banished the heater is now on the floor.
Factual error: The poster displayed in Sally's room is not from 1974. It shows a series that was released in 1997.
