I watched this late at night when I was incredibly tired, and therefore I had a little bit of trouble following it. I struggled to keep up mentally as I watched it and was not that impressed with it it until the very last minute, when suddenly I sat up and went, "WHOA! I GET IT! I LIKE IT!" And that last minute made the whole movie worth watching. Maybe if I watched it again I'd enjoy it better, but like I said, the ending made it pretty darn cool.