Forks Over Knives is out on DVD this week (I already had a copy), and you can also stream it on Netflix if you are a member. Dr. Sanjay Gupta also ran a great special on CNN recently that interviews Bill Clinton and others about dietary approaches to heart disease, and he also talks about what he's learned in a recent clip.
I hope he's right about how we'll look at the typical American diet in 100 years (although I think he might be optimistic there).