It seems I just cant buy apps. I have tied movies yet but the prime movies and TV programs work....but that's a free trial so I doubt it will work once that's done.
When I was looking into whether I wanted to get a Kindle Fire or an iPad last fall it looked as though I wasn't going to be able to do any of the multimedia stuff at all (movies/music). Maybe they've changed the policy since then, but even with a U.S. credit card I can't download music from Amazon right now. I can buy it, but because the site can tell from my ISP that I'm overseas they won't let me download it unless I go through one of those weird proxy server sites that hides your location (and the free versions of those are generally too slow to use for streaming video or downloading anything bigger than a song IMO). That was one of the reasons I ended up going with the iPad, since I can put the Kindle app on there and still read all the books I've already purchased for my old-school (2nd generation, no wifi or anything fancy) Kindle but I can also download shows and movies and songs through iTunes.