David Mercier

Harry Potter and the Prisoner of Azkaban mistake picture

Revealing mistake: Right at the start when Harry is on his bed and making a light under his sheet, you can see that he is actually on something like a light panel in order for this effect to happen. For one thing, when he moves around on it, it doesn't bend like a mattress does. Also, about halfway down the bed you can just see where the sheet ends and this panel begins. (00:00:50)

David Mercier

Revealing mistake: In the punch scene "replay", Harry is noticeably stockier, and I would suggest shorter, and he walks in a very unusual way - very different from Harry. Obviously a double.

David Mercier

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