I came across this short movie titled 'Evol' via Neatorama. It has nothing to do with SY, but it's basically a story about two people who meet across a crowded street in a world where everything is backwards except them. It's nifty and touching, if you can stop your brain from making Coldplay associations (see their video for 'The Scientist' if you don't know what I mean).
http://uk.youtube.com/watch?v=hsF0Eqs8yQ8
Rkk.