Flow: For Love of Water

This documentary makes a terrible kind of sense. It reminds us that something we take for granted, like air, can be sold to us – if we can afford it. And if we can't, what happens then?

According to Irene Salina's eye-opening documentary Flow, 500,000 to 7 million US residents are sickened by tap water each year.

Skips right past depressing on its way to apocalyptic.

A smartly done, involving look at a number of interrelated water issues.

It's strange thinking of water as a market commodity, and it's hard to comprehend the kind of greed that must go into keeping it from needy mouths, but, fact is, the water business is now the world's third-largest industry, meaning there are a lot of sinister souls out there fiddling with their bank statements while Rome dries up.

Flow preaches to the choir with a starry-eyed NPR eco-humanism that can set the wrong kind of person's teeth on edge.

Flow makes you thirsty for more information.