Katyn
Katyń (original)
1940. After Germany's invasion of Poland, Joseph Stalin ordered the liquidation of the Polish officer corps, slaughtering nearly 22,000 men in Katyn Forest. Based on this horrific, historical event, Katyn tells the story of four fictional officers and their families as they struggle to uncover the truth. Nominated for the Academy Award for Best Foreign Language Film and directed by Academy Award-winner Andrzej Wajda.
Starring Andrzej Chyra, Maja Ostaszewska, Artur Żmijewski, Danuta Stenka, Jan Englert, Magdalena Cielecka, Agnieszka Glińska, Paweł Małaszyński, Maja Komorowska, Władysław Kowalski
It's a drama and history movie, and has a rating of 7 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from United Kingdom.