Corrected entry: When Lucy opens the wardrobe for the first time, several mothballs spill onto the floor. In the wide shot, they are gone. They return at the very end of the movie when all four children fall out of the wardrobe.
Corrected entry: When Lucy gives Edmund the healing elixir, which "heals any injury", his life-threatening abdomen wound is healed, but the gash on his lip remains.
Correction: The reason that it wouldn't heal Edmunds lip is because the potion is made to heal the most threatening injury or illness. If the injury is something minor, it most likely will not be healed. In the book "The Voyage of the Dawn Treader", this is explained when Eustace's arm ring won't come off even after being healed by Lucy's potion. It will stop the pain, but it will not heal the injury completely.
Corrected entry: Towards the end of the film when the children become adults, the eldest sister's eyes are a very dark brown color. When they fall back through the wardrobe cabinet they go back to their original steel blue color.
Correction: The mothballs remain the entire time. However, they have been pushed to the left once all four children are in the room.