I highly, highly recommend Kieran Donaghy's Film English, which recently won an ELTON. It has great lesson plans based on short films, which are invariably wonderfully as films, which people then seem to respond to so well in class, possibly because what they're watching is so much more than just another piece of listening material.
Without having seen the video, a colleague (hi, Kate!) had a class of teens produce a series of motivational "quotes" on index cards which they then posted around her school (classroom and corridor noticeboards, mostly), hoping that people would respond to them in some way.
They in fact didn't do so very much, but they loved the idea!