I'm from Vienna, and i learned english in school, but i also spent a year in the US when i was 15, which was definitely the best way to learn/master it..
I believe the dutch have a big advantage when it comes to learning english, because movies are only subtitled, and not completely dubbed (also it is really stupid to see actors "speak" german and quite often not the same person is used to dub the actor, so there can be different voices to the same actor)
I have talked to quite a dutch people, that were actually pretty surprised, how good their english was, just from watching tv, and i personally like the dutch subs, because i get to learn dutch this way
