Actually, we do celebrate halloween in Norway now. Not a lot, though, and probably not the same way americans do. People dress up spookily and go out and get nicely drunk. This year I plan to dress up as Gene Simmons. Originally, me and my three roomies were to dress up as all the four members of Kiss, but then one of the girls had to go for Lara Croft instead. I don't see how that would work as a halloween outfit, but she will look good.
Expect to see a lot of Darth Mauls running around, possibly consumed by the dark side of alcohol.