Continuity: When Rachel goes in to Max's bathroom, all the water falls down from the ceiling drenching everything, but then Max comes in, and takes a dry brown towel off the rail to wrap around Aidan. Also, the white towels behind them are bone dry too.

Continuity: Rachel prepares some toasted jam sandwiches, then brings them into the lounge. She then takes a bite out of it. Then, when she takes the second bite, then first bite she took has gone.

Continuity: When the deer attack the car, the first deer hits the car, and he shatters the driver's side window. In the next cut, you can see Rachel's reflection in the recently shattered window.

Audio problem: When the deer are all grunting at Rachel and Aidan, the whistle of an elk can be heard despite the fact there are no elk in the scene.

Continuity: When Rachel is in the basement looking through the book and sees the newspaper article, if you pause the film when the article appears close up, you can read some of the article. This article has nothing to do with the title and photo caption above it, about the young girl in the bathtub, it appears to be about something political. The filmmakers assumed the article would flash by too fast for the viewer to read.

Continuity: When Rachael falls down into the well, she has her arms up on the wall and on her right hand there appears to be a leaf or large insect or some kind. The shot changes several times, and the object keeps disappearing and reappearing.

Continuity: Near the beginning of the movie when Rachel is eating breakfast with her son, you'll notice that her hair is behind her left ear. After the camera goes back to her, the hair is behind the other ear.

Visible crew/equipment: When Rachel starts to climb out of the well water onto the well wall, in the closeup of her left side as she lifts herself out of the water, a long white cord/wire hangs straight down her left side from her shirt to her pants.

Continuity: When Rachel is trying to get into the girl's house, she isn't wearing gloves, but when she is flipping over the rocks she is.

Continuity: Near the beginning, Hayden is sitting at the desk in his room and his shirt collar is wide open. His neck shows, but that's it. A moment later, when he leaves his room, and comes into the Kitchen, he wears a light grey t-shirt under the other shirt.

Continuity: In the scene where Aidan is in the hospital, Rachel talks to him. When the camera zooms in, you can see the nose-thingy is hanging half out of his nose, but when we see the whole picture it's fully in his nose. When the camera zooms in again, it sticks out again.

Revealing: When Hayden is talking to the Psychiatrist in the Hospital, he is wearing some type of white powder face makeup to make him appear more "ghostly". This makeup was only applied to his face. Whenever they show a side shot of his face and neck during this scene, you can see the demarcation (line) of where the white powder face makeup ends and his natural darker tan neck begins.

Continuity: When Rachel takes her first bite from the toasted jam sandwich, in the wideshot, as Aidan askes her "Do you love me?", she is chewing her bite. Then it cuts to the closeup of her saying "Oh, of course I do honey", with the food suddenly gone from her mouth.

Continuity: In the scene where Rachel has the dream of Aidan telling her to kill him, there was a shot where Rachel looks as if she is about to stroke his face, and the next shot her hand is not on Aidan.

Factual error: There are several problems in the hospital scene where the psychiatrist commits suicide by giving herself an air embolism (injecting air into a vein): the volume of air she injected wasn't large enough to cause death (it appears she used about 30Ml, over 100Ml would be needed), death wouldn't be as quick as was portrayed, and it wouldn't be nearly as "peaceful".

Continuity: During the scene where Rachel puts Hayden into the bathtub at Max's house, Hayden is wearing very light blueish/white boxer type underwear as he is being put into the water. A little while later when Rachel pulls Hayden out of the bathwater, he is suddenly wearing very dark blue/navy colored boxer type underwear. Although water would darken the color somewhat, this is far too dramatic a change to be natural. The lighter color couldn't have possibly darkened to that extent. They are two different pairs of boxers.