Oh my God. It's been about three days, and I'm still attempting to comprehend what I've just seen.
The Human Centipede (2009) apparently started as some sort of joke between friends regarding their thoughts on how criminals, namely pedophiles, should have their mouths sewn to the rear end chute of an overweight truck driver. Somewhere between that joke and the movie itself, the director decided this was the perfect premise of a new and original horror film. And it is, but wow.
***** SPOILERS W/ SCREENCAPS AHEAD (may be NSFW) *****