I first heard of The Human Centipede (First Sequence) a couple of months ago. I immediately began searching for clips or a poster for the film but I couldn't find anything. Today I found not only a clip online but some stills and the poster.
Here's the summary for the film:
Outside the more outré work of Takashi Miike and David Cronenberg, you won’t have seen anything quite like Dutch avant-garde artist Tom Six’ totally bizarre off-the-wall oddity. Internationally respected Siamese twin surgeon Dr. Josef Heiter has a demented vision for mankind’s future existence. He wants to remove human beings’ kneecaps so they have to exist on all fours and then surgically graft them mouth-to-anus to form a centipede chain. When two stranded female Americans arrive at his luxury home-cum-hospital looking for help, his long-gestating plan swiftly moves into chilling action with a shocking force. Kidnapping a third Japanese male tourist he begins the tissue matches, teeth removal and buttock moulding to create his triplet creature… The First Sequence in Six’s intended double feature truly unforgettable imagery, clinically dazzling direction and a so-far-round-the-bend mad doctor performance from German superstar Dieter Laser you’ll scream. Behold the grotesque New Flesh. If you dare!
Obviously the clip is gory and disturbing so watch at your own risk. If you dare!