I'll see it, eventually, but I don't watch movies at $10 a pop. I don't think it's the supermarkets that should scare you, though. It's the factories.
I once read an article on how good, wholesome orange juice is mass produced, and they basically strip out everything natural about orange juice and replace it with refined sugar--which would be why it tastes nothing like fresh squeezed OJ. I think that's the sort of thing the movie will address. I know the food processing PACs, I mean associations, are already very defensive.
If you see it, I'd be interested in what you think.