For some psychotic reason my parents showed me '2001: A Space Odyssey' when I was around ten. Ever since, I've been chasing that dragon. I've been looking for someone to use the powerful tools of cinema to show me - not tell me - something important about the Universe and have me work to (almost) understand it.
There have been times that have come close - Godfrey Reggio's 'Koyaanisqatsi' probably closest, with 'Eraserhead' and 'Enter the Void' in there, too. I'll need to see Shane Carruth's 'Upstream Color' again, but it may belong on this short list. Almost everyone who watches 'Upstream Color' will come out of it saying "I need to see that again."