I'm not a fan of von Trier to begin with. But this movie just got in to my mind really bad. Couldn't stop thinking about it. Was it good, was it bad, if I admit I liked it does that make me half insane? It's a movie that doesn't let go of it's viewers, even though they walk away. I had to pause several times, not because of its length but because the cruelty and sickening things and the anticipation of what was going to happen. But I always came back. I had to see what was coming.. Those ambivalent feelings stuck so hard.. Oh boy. Both disgusted and fascinated. I have to admit that I know feel like a horrible person for liking the movie. It was somewhat pretentious, but imo quite better done than Lynch.
Yes, you do think about LvT and what mindset he has to come up a movie like this. This movie just breaks all barriers. It is extreme. No wonder people walked out of the premiere. But it does have good actors, nice camera work, interesting scenery and a sensation of well done movie.
It's not a movie for a easily horrified audience. Perhaps it's best to watch it alone. And to say you didn't like it or maybe even that you never seen it.