 Fei Mu at this time finished the film in only three months, not using scripts for his actors and cutting the screenplay by two thirds.At the end of film, Fei Mu and screenwriter Li Tianjin did not use the screenplay that Zhichen and Yuwen joined revolution together—a kind of finale of a classic left-wing movie, since it is an easy solution.Wei Wei, to prepare for her eventual iconic role, was told to underact her emotions.