Liu said he is a traditional man, so he will go back to hometown Changchun to hold the ceremony rather than following Tony Leung's suit, who married in Bhutan.

Now 76 and embittered, he said young people should learn about what happened in Changchun - and during the rest of the civil war.

The elderly survivors who gather in Changchun' s Labor Park most days are not eager to tell their tales.

In a rundown two-room apartment beside a huge power station in the northern city of Changchun, Gao Feng sits with his daughter, Gao Zihan.

Filming took place in a mock-up of Nanjing on the outskirts of the Northern city of Changchun.