MovieMistakes.com also found tons of mistakes for the second Harry Potter movie. Can you believe that?
You can find the whole list of mistakes from the first movie
here.
Below are three mistakes they found:
1. Dumbledore asks, "Why then did the Sorting Hat place you in Gryffindor?" and in this close-up the Sorting Hat sits on two books. In the next shot, as Harry answers, "Because I asked it to." The hat now sits on three books in this close-up. During this entire scene in Dumbledore's office, things including the Sorting Hat and lamp behind Dumbledore to his right, change position depending on camera angle.
2. Moaning Myrtle flooded the bathroom when Ron and Harry discovered the diary, but she is a ghost and shouldn't have been able to turn on the taps.
3. In Dumbledore's office, when Harry is handed Godric Gryffindor's sword, in the close-up the name written down the length of the sword is clean, with blood stains only below the name. Yet in the previous and following shots, the blood stains are much closer to the hilt of the sword where the name is.
4. In the Quidditch match that involves the tampered bludger, just before he grabs the snitch the bludger hits his arm shattering the bone and making the arm guard fly off. For some reason the arm guard flew in the opposite direction from which the bludger flew, which should be impossible. The bludger came toward the screen, but the guard knocked away from the screen.