Corrected entry: The chamber of secrets was created by Salazar Slytherin, some 1000 years before Riddle came to find it. Would the plumbing inside the bathroom never have been changed in 1000 years? Or were the toilets and sinks the same for 1000 years?
Corrected entry: When Professor McGonagall transfigures a bird into a goblet, you can see Harry, Ron, Hermione and others from the Gryffindor house, and Malfoy, Crabbe, and Goyle from Slytherin. However, after Hermione asks McGonagall about the Chamber of Secrets, she looks around the room, and we see Justin Finch-Fletchley, who is in Hufflepuff. The decision to place him there must have to do with the fact that later on in the film, he is subject to an attack from the monster within the Chamber.
Corrected entry: Before Tom Riddle came to Hogwarts the toilet was not haunted, but a normal toilet for girls. Wasn't it strange that Slytherin (the man himself) had to go to the girl's bathroom when he wanted to visit his secret chamber?
Corrected entry: In the forest scene, the flame lamp is always glowing with a different brightness. First it's very intense, and then so dim you can hardly see it.
Corrected entry: Deleted Scene UK DVD: When Ron, Harry and Hermione are discussing the diary in the hospital wing, Hermione looks at a random page in the book and says Tom's name, Ron then takes it and points at the page while trying to remember where he read the name. Trouble is, the name is not printed in the pages, but on the back cover.
Corrected entry: In the polyjuice potion scene (movie scene index 20), Hermione sits down and and we see nothing is on the bench. Then when Ron asks her "how", she picks up two muffins from the bench seat. (01:17:40)
Corrected entry: During the filming of The Chamber of Secrets, Emma Watson broke her wrist. You can see the cast on Emma's left arm in the scene when she, Harry, and Ron finally drink the potion. She is able to move her arm and fingers, but you can tell her mobility is stiff and limited, and the sleeve of her gown is pulled down over her hand. Earlier in the film, when she is first mixing the potion, she is not wearing the cast. (01:19:35)
Corrected entry: During the scene when they are playing Quidditch the shadows of the goal posts keep changing direction. (00:53:05)
Corrected entry: In the first movie, the Dursley's house is on the end of a row of houses. You can see right before they head out to the zoo that there is a house attached on the right but none attached on the left. But in the Chamber of Secrets, when the Dursley's house is shown from outside, it's in the middle of a row, with other houses attached to both sides.