Tried to follow your link. It says: "This program is not available in your country". Wonder why...censorship?

Maybe try a vpn? It is an European production, I am not sure, but there could be some rights limitation. It is available till end of January. Protonvpn is free and has EUR servers.

Bit of a shame for the hassle though, the documentary is very good and the topics it touches are rarely highlighted. So give it an other try.

Thanks. Will give it a try.