Continuity mistake: In the scene where Ben knocks on "Sarah's" back door with the apples, the sides of her hair are up and it is evident that there are no visible bruises on her face. However, the next evening at dinner, "Sarah" has her hair down and after moving her hair, a large, fresh bruise is observed by Ben. If this bruise was present, it would have been seen the night before when "Sarah's" hair was 1/2 up.
Factual error: In the dramatic final confrontation, the husband tries to shoot Julia, only to find that the gun is empty. The problem is that slides on automatic pistols like the one used in this scene lock open when the last round is fired. The slide on this gun is visibly closed, so it should still have a round in the chamber.
Trivia: The beach house is supposedly in Cape Cod, but was actually filmed in Wrightsville Beach, NC on Figure Eight island.
Question: Was the doctor (the owner of the sailboat in the beginning) in on Laura's planned disappearance? Or was the bad weather just a coincidence and gave her the chance to escape? Just though it was weird because her husband commented that she only gets on a boat like once a year, so I don't know how she could have planned her escape so perfectly.weetie21
Question: When she discovers the cans are all in order, why doesn't she run out the back door which is right there? Why does she run to the front door?