It isn't as heavy handed as people might have assumed. I can't find the exact quote now but there is one from a filmmaker saying they had more creative freedom under the USSR than the US. In the USSR there were some things you couldn't talk about directly but subtext was often fine. In the US there was that going on as well, but you also had the need for the film to make money and merchandize other downstream products and businesses that lead to a loss of absolute creative control in favor of supporting these efforts.

I believe it was George Lucas talking about some soviet friends