Yes, the one movie I have anticipated all my life—er, well at least since I've found it. The Hitchhiker's Guide to the Galaxy premieres in the U.S. and Canada on April 29, 2005!
Many people, including myself, are ambivalent (some outright outraged) about the movie. I think that Disney is in a precarious position: if they followed Adams' script, then the movie should be okay. Although I warn people, remember that Adams has the tendency to rewrite the series for each medium. So it might differ from the books, just go with the flow.