The Hitchhiker's Guide to the Galaxy is being turned into a flick, and according to The Hollywood Reporter, the film's stars have been cast. Zooey Deschanel (yum), Mos Def (word), and Martin Freeman (who?) will star as Trillion, Ford Prefect, and Arthur Dent, respectively.
Apparently Douglas Adams wrote the screenplay, but the Reporter states casually that Karey Kirkpatrick came on for a re-write.
I hope the movies are as quality as the books.