"Melancholia", by Lars von Trier
Then comes the cosmos. Promoting “Melancholia” Lars von Trier talks about his decision to put the end of the story up front so that the viewers know from the very beginning the finale. The issue of how much of the ending in a given story its consumers want to know, should know, expect to know or suspect could in itself be a subject for another post or even a Ph.D. dissertation. :-)
For now let’s just stick to von Trier’s way of presenting the ending, that is to the computer generated clash of the planet called “Melancholia” into Earth. This clash, in what will become indisputable only later in the film, ends life as we know it in a spectacular bang.
The opening of the film situates the CGI clash image of the end of the world in the company of art inspired tableaux taking their cues from art (Ophelia) or stylizing them as a high brow art situations. The opening therefore does not represent reality as such but rather dives into the territory of the possible, the feared, the subconscious. In this company the earth crash does not announce the reality of the ending, it only shows the possibility or a fear of a terrible thing coming. That’s why I don’t think the opening puts the end up front, rather it telegraphs in a teasing way a potential of something bad. Which, in a way, is much more interesting than "the end at the beginning" maneuver.