There seems to be a problem with the Apple trailer website. Users of QuickTime have the same problems of not being able to play back a trailer. So even with the restored database you won’t be able to play the listed trailers until apple has fixed their website. I’ll keep you posted.
It seems to be related to the user agent. I fixed the updater, but the problem will persists in appletrailerfs itself, i.e. you won’t be able to play back the trailers. I’ll wait until tomorrow to see if Apple has fixed this, otherwise I will post a new version of appletrailerfs that fixes the problem on the client side.
Bugfix available, for download and more details read the blog post.