Revealing mistake: When the girls are on Aslan's back, you can tell that there is a flat screen behind them.
Continuity mistake: When Edmund is talking to Peter after they've found out that Aslan has died, Edmund has a cut on his lip for most of his close-up shots. But after Edmund says, "Aslan believed you could and so do I," in his next close-up shot, the cut on his lip has disappeared, but it reappears later.
Visible crew/equipment: When Lucy, Peter, and Susan are riding on the ice chunk down the river, when you see a shot of Lucy struggling to maintain her grip on the ice block, immediately after, there is a shot of Peter holding what was supposed to be Lucy. However, it is not Lucy. The person Peter is holding is bigger than Lucy and had blonde-brown hair.
Factual error: When the train is travelling away from Paddington Station, the locomotive does not have a number on the buffer beam, but has a number plate on the smokebox door. It also has a large 'British Railways' symbol on the tender. In 1940, the Great Western Railway would have had the number on the buffer beam and a either a small GWR logo on the tender or Great Western in full. British Railways wasn't created until 1948.
Continuity mistake: In the White Witch's castle, when Edmund speaks with her about Aslan, his shirt collar goes from being over his sweater, to under, then over again.
Continuity mistake: After Lucy and Mr. Tumnus meet, when they pick up the scattered parcels their positions in his arms differ, and the string/bows tied round them differ repeatedly between shots.
Continuity mistake: As Jadis, the White Witch, and her army approach, and subsequently battle the army of Aslan, both army's collective shadows differ throughout this scene.
Continuity mistake: When Peter, Susan, Lucy and the Beavers arrive to Aslan's camp and see Oreius, his body is all black. In the battle you can see that Oreius has black legs up to his knees, but then his body is brown. It's easy to see just when the Minotaur drops from Oreius's back: the stomach is brown.
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: After Edmund has been rescued and is talking to Aslan on the cliff, as he starts walking back to the tents, Aslan in the background is suddenly taller than him, even though he is further from the camera. In the next shot Aslan's height is normal again.
Continuity mistake: When Lucy, Peter, Susan and the Beavers speak with Father Christmas, the position of his large bag when it's on the ground, and then in the sleigh, distinctly differs between shots.
Continuity mistake: Peter and Aslan are standing, looking out over Narnia and in frontal views Aslan is only as tall as Peter's shoulders. But from reverse shots Aslan is taller than Peter.
Continuity mistake: When Lucy first enters Narnia, her hair changes between shots from being straight and neat to being messy and slightly curly.
Continuity mistake: As Lucy, Peter, Susan and the Beavers trek through the snow towards Aslan, their shadows repeatedly change in consecutive shots, such as going from long shadows to their right, to hardly any, to long again.
Revealing mistake: When the stone tablet breaks, Lucy and Susan fall down. But if you watch the ground, it never actually moves to make them fall.
Continuity mistake: When Lucy first meets Mr. Tumnus, he holds an umbrella and the strap is either over or under his fingers, depending on camera angle.
Continuity mistake: When Lucy discovers the covered wardrobe during hide and seek, the way the cloth is draped over the wardrobe, and its folds, differ in the overhead close-up, just before she opens it.
Continuity mistake: After Susan and Lucy say they don't have fun anymore, they splash each other in the water, before being surprised by Maugrim, and a few moments later, Peter runs into the water to rescue them. The water stains on their clothing noticeably differ between shots.
Continuity mistake: After Edmund rejoins his siblings, he has a blood-clotted cut on his lip. During the scene where the White Witch comes and meets with Aslan, the cut changes from big, to almost-healed, then back to big.
Continuity mistake: When Edmund gets hit by the white witch, he gets hit on the right side of his face, but in following scenes the mark is on the left.
