Lots of Germans freaking love Trek. This board also has a heavy British population. Lots of Canadians. We've also got a few Aussies, an Icelander and at least one member each from Itlay and France.
Trek's appeal isn't limited to the US.
In the last few days, I've seen 3 fellow dutchmen, excluding yours truly.
Anyway, I think it's got something to do with promotion. Trek's got a lot of cloud over here, but since the promotion obviously wasn't as good as in countries like Britain or France (seeing as there was none whatsoever), it's not that surprising.
Doesn't tend to do the movie any good if people don't actually know there's a new movie.