I didn't like The Human Centipede. As much as I like to see originality in films, THC just didn't do it for me at all - I found the fundamental concept laughable, the tone contradictory (intended to be a dark and shocking film, supported by a cast of pantomime characters and a cartoon villain...) and I just couldn't find it in myself to be frightened by the concept of being surgically forced to 'eat da poo poo'.
The Human Centipede 2, on the other hand... Suffice to say I've never seen a movie director improve and mature so much in such a short period of time. THC2: Full Sequence is a gorgeously creative, unique and original film, cultured and sophisticated to the point that it's almost a shame it has to share a name with its predecessor. The first act has more than a little in common with David Lynch's 'Eraserhead', the dream-like atmosphere serving to help you to distance yourself from the rest of the film's explicit content.
THC2 is a meta-sequel, set outside of the world of its namesake - think Return of the Living Dead, Wes Craven's New Nightmare or Halloween III: Season of the Witch - and revolves around a mute, asthma inhaler wielding sociopath, obsessed with the original film, attempting to recreate its "100% medically accurate" content for real, substituting surgical experience with brute force, a crowbar and staple gun.
Here's the thing - the film is difficult to review as the 'good film checklist' doesn't apply here. THC2 can't be judged on the same scale as your typical movie because of the way it tells its story. For example, the severe lack of character development is one of the film's strongest points; the director wants you to follow one character - the antagonist (or protagonist?) - as he works on his 'project'. I can guarantee you'll find pages of reviews ridiculing the lack of any character development for any of the innocent people who meet their gory fates here, but this and the black & white presentation shift the focus away from 'nasty scary movie' and in the direction of an intriguing art film. You aren't supposed to be fearing for the lives of the innocents, but rather watching in fascination, almost seeing the world through the eyes of the 'villain', to whom these humans are no more than ingredients in his recipe.
I would also expect to see many reviewers claiming this film to be 'the most explicit thing (they've) seen', and while objectionable content is probably more prevalent here than in many (or any) other mainstream movies, I risk repeating myself in stating that this really isn't the focus.
I was as happy as a pig in the brown stuff to have such a stylised, almost Lynch-like film sprung on me in the middle of one of my mates' regular beer & double-feature nights which usually entail brainless horror films, but it wasn't without its share of drawbacks, particularly later on in the film when a pregnant character endures a far-too-predictable and completely implausible sequence of events.
Overall an impressive and ferociously unique film, bound to anger a few prudes. Watch it just to be able to say that you've watched it, and hopefully you will appreciate this surprising leap forward for the post-Hostel gore genre as I did. I can't wait to see what comes next.