“The Battle at Lake Changjin” has become the highest grossing film of all time in China, after nearly two months of release. Co-directed by a trio of major helmers, Dante Lam, Chen Kaige and Tsui Hark, it is also the top earning film in the world this year.

The Chinese record was achieved on Wednesday evening local time when the film passed the RMB5.69 billion total achieved in 2017 by “Wolf Warrior II,” another patriotic war film. By midday on Thursday “Changjin” had advanced to RMB5.70 billion or $892 million at current rates of exchange, according to data from Ent Group.

The feat was confirmed by state-controlled media which had long predicted the achievement. Chinese media also reported that Foreign Ministry spokesperson Zhao Lijian sent congratulations to Wu Jing, the actor who played leading roles in both “Wolf Warrior” and “Changjin.”

The film is set during the early part of the 1950-1953 Korean War,...