Food Inc is all about the American Food Industry. Is about seed to store production of food distributed to America.
This movie has some very interesting points, like corn being the main raw ingredient in many foods. How food is engineered from corn.
The movie discusses the problems with the food industry, like manure in the meat you eat! And how it got there.
The consequences like run off from factory farms causing illness and disease. It goes into people responsible for these kind of decisions and mentions numerous business names, naming and shaming dozens.
How they made this movie I don't know. As a writer I can imagine the scrutiny and legal action they faced after production of the movie.
I recall seeing something similar many years ago, and was already aware of many of the facts presented. A revision of my food industry education.