Sam Rockwell, Mos Def and Martin Freeman in The Hitchhiker's Guide to the Galaxy
I am so looking forward to The Hitchiker's Guide To The Galaxy. Martin Freeman as Arthur Dent, Alan Rickman as Marvin the Paranoid Android and Stephen Fry as the Voice of the Guide? Fan-bluddy-tastic!
Edited to add: And Bill Bailey's in too - voicing a sperm whale! Now there's a frood who really knows where his towel is.