netflix has sometimes wildly different libraries based on where you are - and they weren't always in as many countries as they are now. At least they're nice about updating what's accessible immediately though (this is both a blessing and a curse)

If you download content in location X that is not available after you get to location Y, you can still access it if you put your phone on airplane mode. Can't refresh/redownload though, obviously.

I always thought having a VPN to home was valuable for getting around silly things like this while traveling.