Last night we screened "King Corn" to a packed auditorium at Iowa State University. This was the first big showing in the state where we made the film, and I'll admit to some trepidation going into it.

"You ready for the angry mob?" one of our hosts asked.

Iowa State is a powerhouse Land Grant university, and its agriculture department has long been a force behind our national shift to industrialized farming and eating. If ever we were going to get tomatoes thrown at us, this seemed like the place.