Addicted to growth video :
Al Bartlett's video (8 parts):
Richard Hienberg's peak everything (5 parts):
Growthbusters documentary film (by purchase): http://www.growthbusters.org
Transition towns : http://www.ted.com/talks/rob_hopkins_transition_to_a_world_without_oil.html
Many positive videos of response to sustainability crises at http://www.peakmoment.tv/
(many on you-tube also from peak moment tv)