This film is far from perfect and many of the points made by its critics are true. But somehow these don't really matter - the whole is more than the sum of the parts, and all that. The performances from the four leads are mostly understated and achingly moving when one least expects it. I thought the writing was beautiful, thought-provoking, honest and real - even though some things didn't really add up I just went with it. I didn't find it slow, I was totally absorbed. I loved the music, complementing the mood. Shot during a snowy winter it is also beautiful to look at - a simple little scene of dropping snowballs from a bridge could have been so pretentious but instead just captures a sadness (rather ruined I am afraid when one snowball defies gravity in a ridiculous way that just seems ridiculous). This film has no answers, and is sometimes a little clumsy about it. But just savour it.