I haven't seen the movie, but I've done enough research to be afraid--very afraid!--of the industrial food complex. I try to limit processed foods and make sure to buy ones I can find at Whole Foods or the like. I buy my veggies either organic or--in season--get them from a local organic CSA.
As for meat, my best friend and I did some research and now buy our beef and pork from local formers who only grass feed and humanely slaughter. We need chest freezers because we buy a whole pig and a quarter cow at a time, but I feel so much better with the decision, and the meat actually TASTES better, too. Luckily, we can get chickens pretty much the same way, either from local raisers or at the farm market.