Film 'Red Rain' is in the preliminary round of the Best International Film category - the 98th Oscars. (Photo: Organizing Committee)

The screenplay, written by novelist Chu Lai, features large-scale battle scenes filmed on a 50-hectare set along the Thach Han River. Since its release, the film has drawn over 8.1 million viewers, the highest in Vietnamese box office history, grossing 27 million USD as of September 28.