Last fall, the St. Louis International Film Festival ran a program called "Homegrown," a 52-minute film on the Dervaes family of Pasedena, CA. Going "off-the-grid" the family of four (think: dad and three adult children) have created a urban farm like few others, turning a fraction of land into a remarkable oasis of healthy food production.
Though unable to embed the video directly here, some interesting clips exist online.
Here's an interview with director Robert McFalls:
Here's a 10-minute clip from the Dervaes family, part of an extensive group of clips they've posted to the web:
If you can't find a copy of Homegrown (and they are hard to track), then enjoy the YouTube clips and enjoy the Dervaes family's remarkable story. In fact, here's a link to their primary webpage: