I think it is made using a filmstrip of some frames of the movie then streched vertically. I tried to reverse the image to the filmstrip and this is what i've got: the probel is the image is so low res than the frames are recreated with a lot of difficulty. Anyway, i put a actual frame of the movie next to the filmstrip. You can still recognize figures. like body shapes, etc. My try here (Kill Bill vol 1: http://i.imgur.com/ZUUo0.jpg