Yeah, A Serbian Film does a pretty good job at disgusting me but at some port the gore is just getting hilarious. I think I watched a pretty similar movie like a week ago, it's called audition or something. Not really a fan of Asian movies but this one was pretty great.
And about the human centipede, I'm very sorry my nation had to make this movie. Although I'm pretty amazed since we rarely make movies, especially horror movies. It must be so fun to be the star in such movies as an actor/actress like seeing yourself on TV with your mouth taped on someone his butt.