Considering that the ancestors were passionate young people when they participated in the revolution, the play selected a large number of actors of similar ages to interpret the youthful and exciting style of the ancestors. Producer Huang Jianxin said that the casting criteria were "cautious and strict". During the Nanchang Uprising, Su Yu was 19 years old, Lin Biao was 19 years old, and Deng Xiaoping was 20 years old. To portray them in that period, they must be young actors. In addition to the nearly 60 leading actors, the crew has more than 600 regular staff, and a total of more than 25,000 extras have participated in the filming.

On January 27, 2017, the film released its first official video. Director Liu Weiqiang made a surprise appearance with the film's starring actors and the main creatives from various departments of the "The Founding of an Army" crew. ***Wish audiences across the country a happy Spring Festival . On April 16, the film's director and some actors attended the 7th Beijing International Film Festival and released a "Youth at War" theme production special at the official press conference.

On May 14th, the film crew released a pilot trailer; on June 12th, a "54-person" version of the super-long full lineup poster was released; on June 17th, some of the main creative staff attended the 20th Shanghai International Film Festival The opening ceremony of the festival; on June 18, the film held a press conference in Shanghai and released a special production with the theme of "Shanghai Storm"; on July 7, the "Lion Creator" version of the Ten Revolutionary Pioneers posters was released; on July 10 , the film crew released the trailer for the "Blazing Military Spirit" version; on July 14, four themed posters of "Shanghai, Nanchang, Sanheba, and Jinggangshan" were released; on July 15, the full lineup of the "Asking the Vast Land Who Rules the Ups and Downs" version was released poster.

On July 17, the film studio released the "Youth" version trailer; on July 19, the film premiered in Nanchang, Jiangxi, with director Liu Weiqiang, Liu Ye, Huang Zhizhong, Xiao Ai, Liang Dawei, Dong Zijian, Li Mincheng, Feng Wenjuan The main creative actors and actresses appeared, and a special production with the theme of "War in Nanchang" was released; on July 20, the film crew released the "Battle" version trailer; on July 24, the film premiered in Beijing, and released the "Nanchang City" version full version For the lineup poster, the film crew released the "Hot Blood" version trailer; on July 27, the "Storm and Storm" version poster was released.