I found this on the site, found it pretty interesting
http://media.worldofwarcraft.com/movies/video_loader/wow_video.htm?vid=iammurloc-en&dir=movies/iammurloc&img=iammurloc&rating=wow
Lich king + alliance = horde entertainment
http://www.wegame.com/watch/Lich_King_Invades_Stormwind/