I still have no idea if my amazon.fr prime account is supposed to give me access to prime video. It does right now, but it leaves the french domains all togethe

I still have no idea if my amazon.fr prime account is supposed to give me access to prime video. It does right now, but it leaves the french domains all together and feels like it shouldn't. But then it recognize my account as french and offers me content dubbed in french (which funnily enough I don't want, since I prefer watching VO). I also do not know if my girlfriend's account, who I "share" prime with, is also supposed to get access to it like it does now. The whole prime = free 24h delivery is fine and that's what I pay it for and it's a great deal in my book, but all those asides prime thingy... Amazon needs to clear up what it contains and what it does not. Or maybe I just don't get it.