This film appeared before Food, Inc. but didn't get as much attention for some reason. But through its focus on corn (heavily subsidized in the US), and the health fallout from its domination of the food industry, it tells pretty much the same story of corporate greed and its consequences. You should see at least one of these films if you want a little insight into where your food comes from. Both films have excellent extra features on the DVD, too. King Corn is a bit lighter and perhaps doesn't give as much information about "what you can do" as Food Inc. But it also covers its chosen topic (corn, and its main uses as beef cattle feed and source of high fructose corn syrup) in more depth than the other film, so the ideal would be to see both. If enough people see either film, perhaps the epidemic of obesity and diabetes can be reversed, and family farms will start to recover from their near-extinction by factory farms. This could also help to turn climate change around.