In the movie of the same name adapted from Jia Pingwa's novel Happy, "Black Sa" is the soundtrack of the movie, and five works have become the interludes of the movie, including Shaanxi Cuisine, Getting Up Before the Chicken, Qin Shihuang's Accent, and Ode to Joy and Happy Ragged King, which are specially created for Happy. Two lead singers, Cao Shi and Wang Dazhi, also participated in the performance of the film. When asked by a reporter whether this indicates that "Black Sa" has entered the real mainstream, Shuangxi said: "We are a group of mainstream people, just doing music that people think is not mainstream." Wang Dazhi said: "When the finished product came out, I really felt a sense of accomplishment. I hope our music can set off the plot of the whole movie. I didn't think much about others. We used to make music for some TV dramas and advertisements, but this time I really participated in the production of movies. It felt completely different. Being an actor was very tiring and great. "