The movie 731 has a running time of 125 minutes.

On September 4th, according to Lighthouse Professional Edition, the film "731" release notice was announced, with a running time of 125 minutes and set to be released on September 18th. "731" is directed by Zhao Linshan, starring Jiang Wu, Wang Zhiwen, and others. It tells the story of the Japanese troops invading Harbin in northeast China and conducting research on biological warfare in Pingfang District before the victory of the War of Resistance Against Japan. Street vendor Wang Yongzhang and others were forcibly arrested and subjected to inhuman torture in a "special prison". The film reveals the inhumane atrocities of the Japanese army through the perspective of civilians and showcases the indomitable spirit of the Chinese people's resistance in desperate situations.