The preview was just about perfect. No, the outside of the castle isn't like it is in the book, but it's something I can forgive given how much character the thing has and how good everything else about the trailer was. It's currently anticipated as a fall release in Japan.
And Calcifer is so cute!
(More movie-making gossip here.)
P.S. In case you thought this post was entirely unrelated to the King Arthur posts I've been making... Diana Wynne Jones, author of Howl's Moving Castle, also wrote The Merlin Conspiracy.