To me Bladerunner (and perhaps 2001, though I'm still undecided after all these years) have a message that only really becomes clear long after you've seen them. Bladerunner - to me - is about mortality and tough decisions that go against human nature, wrapped in a sci-fi jacket. 2001 I've enjoyed every time I've watched it, except the 'trip' at the end which is simply cut too long in my opinion. The lack of clarification at the finish seems like a letdown until you realize that Stanley must have meant something by it. I'm still unsure what he meant, but maybe I'll figure it out some day.