This movie is an exploration of the state of deep depression - the horrible behavior and unnatural strengths which it breeds in the person suffering from it as well as the innocent bystanders who are victimized by it and the less innocent people who help breed and encourage it for their own ends. The first part of the movie does so comparatively straight forwardly by introducing the character of Justine (Dunst) and showing us how her affliction can ruin even the happiest of situations as she self destructs during her fairy-tale perfect wedding. It also shows us some of the people who helped her give birth to her condition, help maintain or exploit her condition, or who suffer from trying to care for her. The second half, a kind of apologia for Justine's behavior in part 1, involves a world ending catastrophe in the form of a massive extra solar planet named "Melancholia" on a collision course with the Earth and how both Justine and some of her family respond to this event. I feel this second part was an intriguing and captivating attempt to both give the viewer an impression of the subjective psychological weight that a person like Justine lives with on a daily basis and to show how some other people might react if suddenly forced to walk a mile in her shoes. My understanding of depression is that it is a highly perplexing and contradictory mixture of self-abasement and astonishing egotism which, despite how enraging it can be to others, is not something you would wish on your worst enemy. This movie is an attempt to explore it and describe it in ways both real and metaphorical. Great performances by all involved (especially Dunst), amazing cinematography and skillful direction make this attempt well worth watching if that's the sort of thing you're in the mood for.