The Human Centipede (2009)

Factual error: During the surgical operation, Dr. Heiter makes incisions on the buttocks for the triangular flaps of connecting flesh; but the flaps are pointing outward, rather than inward. The only way to graft the buttock flesh to the face of the next subject would be with the buttock incisions pointing inward.

Charles Austin Miller

Continuity mistake: In the beginning of the movie, the doctor invites the two girls knocking on his door inside out of the rain because their car broke down. He gives them both water (laced with drugs). One of the girls knocks her glass over, spilling most of the water, which can be seen as the glass sits on the table. Then when the doctor leaves the room, while the two girls are talking, you can see that the glass on the table magically is filled again.

acmorwin

Revealing mistake: When Dr. Heiter takes Katsuro from his car, you see Heiter drag him out of the back seat. He then proceeds to lift Katsuro. If you watch Katsuro's hand, you'll see he "helps" Heiter by pushing himself on the door-frame of the car (you see his hand tense as he pushes himself up).

Trivia: The movie spawned from a dark joke the director made. He had jokingly blurted out that a sexual predator he saw on TV should "have his mouth stitched to the a** of a fat truck driver." He and his friends found the idea so gross that he decided to develop it into a horror movie.

TedStixon

Trivia: Roger Ebert was so put off by this movie that in his written review he refused to assign it a star-rating.

Phaneron ★

Dr. Heiter: Do you already regret your little escape? In fact, I'm thankful for it, because now... I know definitely you are the middle piece.

Katsuro: God. Are you God? I'm just a puny insect. I cast out my parents, left my child, dismissed their love and led a selfish life. Just like an insect. No, my existence is even lower than insects, but... but dear God... that's how I've lived, and this is my punishment. I want to believe that I'm still a human being... Hey girls! Hey mister! What an insane world we live in.

Dr. Heiter: Eye for eye... Tooth for tooth.

Question: When the two girls get out of their car due to a flat tyre, they begin walking back from where they just came. Why didn't they keep walking in the direction they were going instead of back tracking?

Michelle Ferris