Some have claimed that "Stalker" is not a science fiction film. I'd say it's more of a science fiction film than most of what Hollywood passes off as part of the genre, most of which are simply action films with a sci-fi bent. Stalker is science fiction in the vein of the genres greatest writers like Phillip K. Dick and Stanislaw Lem. It's pure science fiction, based on science, metaphysics and speculation, not some action fantasy or space opera that fits into the genre on the technicality that it takes place "in the future" or "a long, long time ago". The film is slow...very slow but it has to be to put you into the mindset of the film. After the opening 30 minutes the pacing actually draws you into the film in a more personal way more than any Cyborg-post-apocalyptic-hell crap Hollywood could spew out. This film is truly sci-fi, and truly great sci-fi.