I finally watched Blade Runner (the final cut version), and ... wow. Dark and disturbing and, definitely, a masterpiece of sci-fi film-making (in details ranging from the not-quite-human behaviors of the replicants to the score). Then this dark jewel from Rutger Hauer at the climax:
"I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched C-beams glitter in the dark near the Tannhauser Gate. All those moments will be lost in time, like tears in rain ..."
Two thumbs up.