whaa-a-what?? Not familiar with ABBA? You're kidding, right? Oh my my my my my, we'll have to do something about that..

I was confused about when the movie took place too, but I believe it was supposed to take place in the 80s. The offhand references to Russia (or probably they said the Soviet Union?) were apparently referring to some event that took place in the 80s that Swedes would have been familiar with.