"Food, Inc." (2008)

What it's about: Director Robert Kenner offers a deep look into how the food industry has changed drastically since the 1950s, driven mostly by multinational corporations and fast food companies. The film was nominated for an Oscar, and for good reason.

Why you should see it: "Everyone eats food, but very few of us stop to consider where all of it comes from. And when you look as deeply and as widely as author Eric Schlosser did with 'Fast Food Nation,' which director Robert Kenner based his documentary on, the picture is shocking and often disturbing.

"There are some political leanings apparent in Food, Inc., and a few facts that seem suspect. But the larger picture — a desperate need for a better, healthier, more humane food system — remains firmly intact. If you eat food in the United States, you must watch this movie. It's as moving as it is informative." —Dave Mosher, science and tech correspondent. [Click to watch]