Les bourreaux de Staline - Katyn 1940
Les Bourreaux de Staline : Katyn, 1940 (original)
The Katyn massacre, carried out by the Soviet NKVD in 1940, was only one of many unspeakable crimes committed by Stalin's ruthless executioners over three decades. The mass murder of thousands of Polish officers was part of a relentless purge, the secrets and details of which have only recently been partially revealed.
Starring Cédric Tourbe, Dmitry Tokarev, Leon Trotsky, Lavrentiy Beria, Felix Dzerzhinsky, Vyacheslav Menzhinsky, Genrikh Yagoda, Joseph Stalin, Nikolai Yezhov, Kliment Voroshilov
It's a documentary and history movie, and has a rating of 8 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Denmark.