Morally ambiguous teen movie

I know, nobody ever visits this board, but anyway... In my guest to seek out outstanding Soviet movies, I came across this gem. What really struck me was the kind of moral ambiguity that's present in many Soviet and Russian movies, but absent in most Hollywood movies. I mean, it's really hard to tell if the main character (the girl) is supposed to be good or bad, am I supposed to like her or not. Most Hollywood movies come with a rather clear "recommendation" - this character is good and this is bad. There are exceptions, of course, for instance Unforgiven (1992). But this kind of ambiguity seems to be more prevalent in Russian cinema, perhaps also in European. Another morally ambiguous Soviet movie I recently watched was Courier (1987).

I had hoped Kukolka would be more about general societal issues of the time (perestroika, decline of Soviet Union, etc.), but instead it concentrated mostly on the relationships between the girl, her classmates and their hot young teacher. That puts it into the category of "teen movies". In that sense it was a bit inferior to Courier, but still far more interesting than most teen movies.

The tragic (though somewhat vague) ending was possibly inspired by the accident of famous Soviet gymnast Elena Mukhina.