Corrected entry: Toward the end of the film when Anna grabs her shotgun, she says that she protected her family from the Nazis, but the Nazis didn't exist during the first World War.
Corrected entry: The children's condition is called Xeroderma pigmentosum, according to a special feature in the DVD. When first bringing Mrs. Mills to meet the children, Grace explains that the children are photosensitive and cannot bear light much stronger than that emitted by the lamp she is carrying. Xeroderma patients are sensitive to ultraviolet light, a certain kind of light (wavelength, and not the intensity (amplitude) of the light. The children should be able to bear a strong light like anyone else so long as it is not UV.
Corrected entry: In the fog scene, when Grace first embraces her husband, if you look in the right upper-hand corner of the scene, you can see the dark outline of a figure show up, and then walk off the edge of the frame. Look closely, it's there. Given that no-one else was supposed to be in the scene, this may be a crew member.
Corrected entry: There is more then one occasion where Grace forgets to lock a door or opens one that had to be locked.
Corrected entry: When Grace and Mrs. Mills are sitting by the fire talking, Grace's wrist is "naked" in one shot and in the next she is wearing a wristwatch. (00:42:25)
Corrected entry: In the scene when the chandelier shakes and Grace thinks that it is the mute girl, as Grace steps up and looks outside she sees Mrs. Mills talking to the mute girl. As the camera zooms in on them you can see the girls lips moving to indicate that she is speaking.
Corrected entry: The children are obviously light sleepers, given that when their father comes home, he only has to stand at the foot of the bed and say one sentence to them before they both wake up. So how did they remain asleep while all the curtains were being pulled off their windows, just a few feet away?
Corrected entry: In the scene where Anne is breathing very heavily while they are eating dinner and her mother tells her to go to her room when she walks out the door is open and she does not lock it.
Corrected entry: The daughter asked to go and see her father after the fight with her mother. As the daughter is walking out of the room with the maid, Ms. Mills, her mother, goes into the room and all of the curtains are pulled open and light is coming into the room. How did the daughter survive in the room since she is Photosensitive? There was no time to pull the curtains open between her walking out. A few scenes later, the kids notice the curtains pulled off and they wake up screaming.
Corrected entry: When Grace is taking off her dress in front of the mirrored wardrobe while talking to her husband, who is supposed to be sitting on the bed, the mirror on the front of the wardrobe shows there is no one on the bed.