Easter egg: In The Chronicles of Narnia: The Lion, The Witch and The Wardrobe Special Two-Disc Collector's Edition DVD, in the second disk, choose the section "Creating Narnia." That menu will have three features; select the one entitled "Evolution of an Epic." When scrolling up an down, a flower will come up on the picture of the director's chair. Click that to see a clip of Skandar Keynes' experiences with eating much Turkish Delight.
Easter egg: On the main page press up, and the little lion picture will become highlighted. Press enter to watch a short complation of shots panning around the Narnian landscapes, while the harmonious instumental music plays.
Answer: It was never mentioned in the book or the movie that breath wasn't visible, so it is a mistake.
Phixius ★