It's not very often that tears start rolling down my cheeks while watching a political documentary! Flow was that moving! A film full of both the very best and the very worst humanity has to offer.
I'm an environmental activist and have been following global water issues for years. What makes Flow so absolutely wonderful is that it covers it all. It's like watching a prosecutor make an indictment: needless water contamination by some rather nasty chemicals, such as pesticides, herbicides and pharmaceuticals; harm caused by World Bank & IMF policies; gross abuses of human rights by smug transnational water corporations throughout the world, including the USA; harm caused by damming many of the world's largest rivers; preventable diseases and deaths caused by polluted water, such a cholera; hormonal changes in fish and amphibians.
On the other hand you see some incredibly brave people stand up to these mind-boggling abuses of power. Even an extremely elderly disciple of Mahatma Gandhi teaches the next generation of activists how to be effective. Plenty of brilliant and appropriate, low-technology solutions are shown. It does not take huge transnational corporations to assure the delivery of safe drinking water, which is (pardon the pun) made crystal clear!
Flow is one of the most outstanding documentaries I have had the privilege to watch in my entire life! My hat's off to all those who made this magnificent film possible!