Other mistake: The car that Mary is driving does not have a front registration number plate.
Other mistake: At the very beginning of the film, when the two cars are along side each other, the man wearing the hat leans out of the car window to challenge the women in the other car to a race, watch out for when he speaks, you can see that his words don't match his mouth movements - he's talking out of sync.
Other mistake: Just after Mary sees the old pavilion for first time and the ghoulish face in the window, her car goes off the road, as she reverses the car back onto the road, the interior light above her head is not lit, but when she drives the car forward, the light above her head is now switched on.
