Square Enix recently published a guidebook which serves as a fast background guide so that it'll be easier to understand the movie. It's aimed at those who haven't really kept up with the monthly movie news in magazines such as Newtype and Animedia, so this book compiles some information on the alter!world. (I have not scanned in the staff interviews. If you want them, drop a note.)
It also contains a closer look to Ed's arm and leg in Amsteris vs our world.
Please do not redistribute my scans without permission. That page will be friends-locked in a few days for obvious reasons.