Mistakes
At the start, in shots from the stage towards the audience, all of the fires are lit, but in a closer shot of the audience near the front of the stage, at least one of the fires is out. During the final illusion shown at the end, the same shot or at least very similar to the one used at the beginning shows the same mistake again. See more...
Movie Mistakes blog
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The Illusionist (2006) - 1 trivia entry
starring Edward Norton, Jessica Biel, Paul Giamatti, Rufus Sewell (add more)