Makes the dream work? Well sometimes it is also the nightmares that it makes work ... but let's not get ahead of ourselves. The movie starts off in something that would make sense with the German/International title of Fabricated City ... and then it sort of turns around and yanks the floor under your feet and goes a different direction ... and then it does so again.
It seems willing to not just surprise you, but give you different genres ... having said that, to achieve certain things, it seems necessary to serve up some cliches and feed them to you. You may take issue with some of them or maybe even all of them .. but if you do, you will derive yourself of a fun ride. Yes things get convenient and yes this will be predictable from a point forward ... still the action is tight and the insanity is more entertaining rather than boring ... which is a good thing I'd say.
