This movie is an absolutely mind-blowing phantasmic array of image and sound. You HAVE to watch it. I've never seen a sci-fi/psychological type movie implemented as well as this was. I don't have one even slightly negative thing to say about it.
Even before the starting credits we are given an overwhelming thing to digest. This is scary. The complexity presented in the film is sublime to the point of inducing neurosis. I cannot think of a more intricate and elaborate creation.