It's the second highest grossing film this year in the world and the highest grossing in Chinese film history. All the western press are peeing their pants calling it a "state sponsored propaganda film".
Americans decided to invade China to grab territory early into the Korean war, then Chinese forces pushed them back. The ratings are all 10s and 1s as people overreact to it. Chinese TV and film are half composed of world war 2 melodramas but one portraying the Americans as the aggressor and North Koreans sympathetically seemed too much to handle for the western press.
I haven't seen it yet because it's not out on illegal pirate download yet but I probably will because of the row.