Opening this week is Food, Inc., which had help from such food activists as Michael Pollan, Eric Schlosser and Joel Salatin. Animal-lovers may want to avoid the movie because it shows the horrors of industrial meat production, though I suppose the argument is that people who eat the animals should know what it took to turn them into dinner (and I agree). At least the trailer won't give you nightmares.
There's a companion book of the same name, and here's an article from it by Joel Salatin, called "Taking down the corporate food system is simple."
Moving on, I saw Food Fight recently and can recommend it. Ditto Fresh, which features Joel Salatin and Will Allen, among others. There's also Home Grown, about the Edible Estates family in Pasadena, CA. And remember the terrific Super Size Me? King Corn has an original story line – two Eastern college kids trying to make it as corn farmers, and learning a lot about our food system. Oh, and you can watch the full-length The Future of Food right here on Hulu.
Anybody know of others?