The Hitchhiker's Guide to the Galaxy

Seconds before Earth is demolished to make way for a galactic freeway, Arthur Dent is plucked off the planet by his friend Ford Prefect, a researcher for the revised edition of The Hitchhiker's Guide to the Galaxy who, for the last fifteen years, has been posing as an out-of-work actor. Together, this dynamic pair begin a journey through space aided by a galaxyful of fellow travelers : Zaphod Beeblebrox, the two- headed, three-armed ex-hippie and totally out-to-lunch president of the galaxy ; Trillian (formerly Tricia McMillan), Zaphod's girlfriend, whom Arthur tried to pick up at a cocktail party once upon a time zone ; Marvin, a paranoid, brilliant, and chronically depressed robot ; and Veet Voojagig, a former graduate student obsessed with the disappearance of all the ballpoint pens he's bought over the years.
Where are these pens ? Why are we born ? Why do we die ? For all the answers, stick your thumb to the stars !