Far from being a major work is simply a very good film that works on the human psyche and the thin line between the true memories, the possibilities of what happened and the recesses of the head. He catches us, takes us by the finger wherever he comes in earnest, but let's not let him win the game, because other dream teachers already played the joke (Lynch). Here the explanation is literal and we have to wonder that Christopher Nolan making films without money, without so much city upside down, only with its limitless imaginative resources and an austere staging colored of black with the perverse life of its personages