EntertainmentTVDocumentariesOscar-winning 20 Days in Mariupol is now available to stream for freeWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. EntertainmentTVDocumentariesOscar-winning 20 Days in Mariupol is now available to stream for freeWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. (Image credit: FRONTLINE) Haven’t seen 20 Days in Mariupol yet? Well, Channel 4 has got you covered if you’re trying to watch the Oscar-winning movie, as it’s now streaming for free on the UK-based platform. At the Oscars, 20 Days in Mariupol beat out the likes of To Kill A Tiger, which centers on an Indian farmer seeking justice for his 13-year-old daughter, Bobi Wine: The People’s President, which details the life and career of the titular Ugandan activist, Islamic …