Human Centipede 3.
1/10 - will never get the time back in my life. All three not really my type of movie but first one was interesting for it's weirdness, and the second even more weird and quite comical. The third, a lot of shouting and not much really - ended up speed watching the last 50% of it. Some parts were funny but just tired of the movie - hopefully it's the last one they make. I did like the fact that they had some of the lead actors from the other two in the final one.
Second movie I thought was the best. From the clinical cleanliness and wealth of the environment and intelligence of the character in first "centipede maker", to the poor, dirty environment mentally challenged aspect of the second maker. For me the contrast and more comical nature of the second made it a little better.