As you may or may not be aware, they are in the process of creating a Hitchhiker's Guide to the Galaxy movie, to be released on May 6, 2005. Yahoo! Movies (see link below) has a trailer for the film. It doesn't show anything but it is mildly entertaining, especially if you're a THHGTTG (or H2G2) fan like myself. (Woot for Douglas Adams!!!)
(Official Site) (IMDB) (Yahoo! Movies)