"The Battle at Lake Changji" is set to be the biggest grossing film of the year, but critics have slammed it as propaganda designed to whip up nationalism in Chinese audiences.

"It is an anti-national act that goes against the system of liberal democracy to show to our young people today a propaganda film describing Chinese soldiers as heroes when they were actually part of a war that infiltrated our country," the association added.

According to Han, The Battle at Lake Changjin is another example of propaganda. She says North Korea started the three-year conflict by invading the South, then Beijing came to Pyongyang's assistance after the UN forces had pushed the North Korean military virtually to the Chinese border.

"If China had not helped the North and attacked the South, then the war would have been over much earlier and hundreds of thousands of people would not have died," she said. "Instead, the fighting went on until 1953, the damage to the South was terrible and we still live on a divided peninsula."