I just got back from seeing Hitchhiker's Guide to the Galaxy. And I wasn't disappointed.
This was chiefly because I didn't go in expecting it to be as good as the book, because that would be an impossible task(or, as Trillian would say, "very improbable").
First off, I have to say, the "one-head-under-the-other" thing for Zaphod was kinda lame. And am I the only person who pronounced it "Zah-fod" instead of "Zay-fod?"
However, the characters were decent, there were plenty of funny spots, the Guide was done about as well as it could have been, and Marvin(who was my favorite character from the books) was absolutely perfect. And, most importantly, it was a fitting tribute to the late Douglas Adams, the most creative, humorous, and brilliant writer in history, who unfortunately didn't get to see the movie he tried for years and years to make.