'It was just left to the people': behind a chilling documentary on the Flint water crisis

The in-depth story of a manmade disaster with everlasting consequences. "Flint, a former car manufacturing boom town that fell into economic decline, tried to save money in 2014 by taking its water supply from the Flint River but did not treat it to reduce a corrosive effect on old pipes. As a consequence, lead leached into the system, causing a public health catastrophe." David Smith, writing in the Guardian, goes behind the scenes of British director Anthony Baxter's five-years in the making documentary.