Wu du mang mang

The literal translation of the title of this movie is: Misty City.

The story is loosely based on the true story that really happened in real life, and the city was actually Chongqing in Si-Chuan Province, western part of China. One thing that this movie was not emphasized enough was the contributions of the ex-nationalists who switched their side by defecting to communists, it was their intelligence, and their expertise, such as police work (because communist troops are peasantry army without any urban law enforcement experience) that helped to prevent the disaster. Sadly, in real life, many of them perished in the political movements such as the Cultural Revolution.