My problem with Melancholia is the same the second time around as it was the first. Like I'm Thinking Of Ending Things, I enjoy one half of the movie far more than the other, but the half I enjoy here is the back half. If I'm only going to like half of a movie and we're splitting it down the middle, I'd much rather enjoy the start and be let down then never really get excited for anything in the first place.
Once Melancholia the planet starts to actually matter in the movie is when I get interested in it, seeing everyone grapple with the impending doom, or Justine having apparently already done so and moved on to acceptance because she knew it was happening. But the first half of the movie... kind of just makes me hate everyone and not care all that much what happens to them in the second half.