Um ... 'don't panic,' or something?

I'm one of approximately 17 people who has never read Douglas Adams' The Hitchhiker's Guide to the Galaxy, so you'll forgive me if I'm not squealing with antcipation. But most everyone else seems excited. Anyway, today Amazon.com has some sort of exclusive "world premiere trailer" for the movie, which opens April 29.

It stars Martin Freeman -- Tim Canterbury from The Office -- so that's kind of neat.