The award winning Soviet director Andrei Tarkovsky filmed Stalker in 1979. It was based on the Boris and Arkadi Strugatsky science fiction novel roadside Picnic.
Like Tarkovsky's previous work, Solaris, he downplays the sci-fi aspect and focuses on a moral and philosophical meaning in life. This combined with images of desolation and rather erie ambient background music make for an absolutely beautiful film.
But this is just my opinion; if you have seen it what's yours?
Link to Stalker on Amazon.com http://www.amazon....=1196721279&sr=1-1