There are so many great foreign films on this subject.
For example, there is "East-West", which is one of the best dramas/romances made about the former Soviet Union.
Some other great films are "Mendel", " Canary Season", "Xiu Xiu" and "Farewell My Concubine."
"Children of the Revolution" is a very funny parody of a hardcore, unshakable Australian communist, who has the love child of Joe Stalin.
It also stars Geoffrey Rush, F. Murray Abraham and several other distinguished actors, so it's worth taking a look at.
There are few on the PRC. "To Live" is another good one, which shows how great 'universal' health care can be.