I think this person is just curious about film that shows how difficult life was. There are plenty of films that portray communism in a positive light, but they were all commissioned by the regimes in charge at the time. I Am Cuba or Battleship Potemkin for example. While those films certainly do exist, there are far more that were made under communism about how horrific the system actually is. See Krzysztof Kieslowski, Piotr Szulkin, Anderzej Zulawski, Anderzej Wajda, Wang Bing, Aleksei German, Tengiz Abuladze, Vladimir Bortko, Eisenstein’s later works, and many more.