Revealing mistake: When Abbey grabs the knife and threatens David, David falls and hits the tea party table, sending the tea set onto the floor. As Elizabeth crosses to be next to David, her foot hits a pink tea cup piece on the floor sending it rolling away behind her. As a ghost her foot should have just passed through the object. (01:06:45)
Revealing mistake: When Elizabeth tries to grab things earlier in the movie, her hand just passes through things. But in the bar, when she's trying to stop David from drinking, she's able to hold on to his arm/move his glass, so he can't drink.
