Celebrated artist and filmmaker Ai Weiwei shot part of “Human Flow” using smartphone and drone footage. The monumental documentary, about the current worldwide refugee crisis, was filmed in 23 countries. Here’s the trailer.

David Ehrlich provides a detailed analysis of this important movie in Indirewire.  The film, which covers the plight of millions of people displaced from their homes, was a selection in the 2017 Venice Film Festival.

Currently playing in theaters, this Amazon Original Movie will soon be available online.