("Coming December 7." So they opened the site--as of yesterday, is my guess--363 days in advance. Well played, New Line.)
ETA: Yeah, that's Nicole Kidman as Mrs. Coulter. Also, cheats for the alethiometer have been posted in the comments, if you go looking. They unlock seven production art wallpapers--I'm going to go ahead and link to two of them, because the production design is... interesting: Lyra's London and what I'm assuming is Mrs. Coulter's carriage.