The Hitchhiker's Guide to the Galaxy and Canada, and 29 July in South Africa. (A full list of release dates is available at the IMDb.) The movie stars Martin Freeman as Arthur, Mos Def as Ford, Sam Rockwell as President of the Galaxy Zaphod Beeblebrox and Zooey Deschanel as Trillian, with Alan Rickman providing the voice of Marvin the Paranoid Android (and Warwick Davis acting in Marvin's costume), and Stephen Fry as the voice of the Guide/Narrator. The plot of the film adaptation of "Hitchhiker's Guide" differs widely from that of the radio show, book and television series. The romantic triangle between Arthur, Zaphod, and Trillian
Technology in The Hitchhiker's Guide to the Galaxy After Ford starts the Thinking Cap, Zaphod (who was very groggy from having his second head removed by force) immediately was able to walk straight and think smarter than usual, and ten minutes later he could still walk, but was back to his normal, over-the-top self. "The Hitchhiker's Guide to the Galaxy" states that a towel is the most important item a hitchhiker can have. It also mentions that "to know where one's towel is" means to be in control of one's own life. It describes the towel as a multipurpose tool which can be converted into such things as