The story is no prodigy of invention but entertaining, photography is fantastic and the interpretation of Lim Soo-jung and Jung Ji-hoon are pretty good, especially hers. Not missing a couple of sublime scenes clearly inspired by the anime with the music that put background is amusing because it is impossible to take them seriously. In short, "I'm a Cyborg..." is not a perfect film, nor round, but very funny, well directed and which is not a waste of time.
Notice that subject is an absolute break with the previous trilogy's director, where violence was the main ingredient, but "Old Boy" seeming to do the best that has run its maker.
5/10