Did you know that Hugo Schmeisser (the inventor of STG44 and some other wapons) worked at Izhevsk after war? He was one of the captured engineers.
Reality is that Kalashnikov didn't know anything about weapon industry. And AK-47 is improved STG44. That's the reality.
Movie is trying to add more propaganda and it would be fine if they wouldn't add it as historical accurate movie. Overall movie is not that bad and you can actually enjoy it. Actors play pretty well and atmosphere is shown very realistic. On the other hand I would add some more action into the movie. Some pressure from the government. They could do way more about the story to make it more entertaining overall.
Movie is trying to add more propaganda and it would be fine if they wouldn't add it as historical accurate movie. Overall movie is not that bad and you can actually enjoy it. Actors play pretty well and atmosphere is shown very realistic. On the other hand I would add some more action into the movie. Some pressure from the government. They could do way more about the story to make it more entertaining overall.