New trailer here :
http://video.ugo.com/player.aspx?articleID=13939&ref=ts. Shitty quality though.
The movie's looking pretty interesting. I'm glad they didn't try to go overboard with special effects; looks like they're using plenty of puppets and wisely chose not to include Zaphod's extra head and arm in each shot.
I just finished reading the whole series of novels, and I agree the first three were best. I didn't like how Zaphod suddenly disappeared from the story :/
Anyway, can't wait to see this movie.