This has probably been posted already, but I stumbled on them last night.
The first link is a 2 hour christian produced documentary about moving to the country. The first 15-20 minutes discusses the Great Depression. After that, it showcases several families and what they are doing on their property to be self reliant. There is a lot of technical stuff in this movie that makes it worth the 2 hour investment of your time. This is a must see for anyone who has a dream of self reliance.
This second movie is more of a "dooms day" type documentary that I believe is produced by the same group. It details more of the dangers presented and associated with living in the city. No technical stuff here, just a hard, realistic take on city life.