Other mistake: When Aslan is resurrected, and the Stone Table cracks, you see Susan and Lucy stumble from the jolt and fall. If you watch closely, however, Susan prepares herself for the jolt before it ever happens. She throws her arms out and bends slightly at the waist, a few seconds before the jolt.
Continuity mistake: When Peter finds the note about the capture of Mr. Tumnus he pulls it down off the nail, ripping the top edge of the paper. In a following shot the top edge of the paper can be seen fully intact, then ripped again. (00:41:20)
Professor Kirke: What were you all doing in the wardrobe?
Peter Pevensie: You wouldn't believe us if we told you, sir.
Professor Kirke: Try me.
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