电影《731》票房破5亿！首映日观影人次达914万

Core Insights - The film "731" premiered globally on September 18, achieving an audience of 9.14 million on its opening day and surpassing a box office of 500 million [1][3]. Group 1: Box Office Performance - On its opening day, "731" set two records in Chinese film history, becoming the champion for both single-day total screenings and single film single-day total screenings [3]. - As of now, the film's box office has exceeded 500 million [1]. Group 2: Film Content and Historical Context - "731" narrates the story of the Japanese army's bacteriological warfare research in Harbin, China, during the final stages of the War of Resistance against Japan, highlighting the atrocities committed against civilians [5]. - The film emphasizes the determination of the Chinese people to reveal historical truths, particularly regarding the events surrounding the September 18 Incident in 1931, which marked the beginning of a 14-year struggle against Japanese aggression [5].