The official website for The Chronicles of Narnia: The Lion, the Witch, and the Wardrobe is now available with information on the production, the books, and Narnia itself.
The first time you try the site, make sure to allow plenty of time for it to load. Eventually a white gem will appear on the doorknob to match the one by the lock and it will turn into place. Then you get to go through the keyhole and enter the wardrobe.