The movie 'Litchi in Chang'an' tells the story of Li Shande, a Tang Dynasty ninth grade official, who has to complete an impossible task within a fixed period of time - transporting fresh lychee from Lingnan to Chang'an. Litchi changes color in one day, fragrance in two days, and taste in three days. If we speed up, it will take a month for a person to travel from Chang'an to Lingnan, and everyone can intuitively feel how difficult the task is, "said Da Peng. How to present this' impossible task 'in cinematic language? Dapeng said frankly that the crew tried to restore the essence of the original work to the greatest extent. For example, in the scene of transporting lychees, we retained the grid eye method, transportation route, and preservation method mentioned in the novel, and displayed them through scene scheduling. Film critic Fujii Shu believes that the movie "Lychee in Chang'an" is like a historical road movie, where the protagonist is always on the road, while other characters are all busy around the transportation of lychees. It can be said that the film focuses on telling the story of lucky lychees, without any waste, highly condensed, and seamless. In order to be closer to the narrative rhythm of the film, it has been rationalized and adapted. The biggest change is that Bai Ke plays the role of businessman Su Liang. The movie adapts Su Liang from a foreign businessman to a young man who is considered by his older brother to be 'not good for business'. He is determined to prove himself to his family, which is why Su Liang works hard for Li Shande. The adapted character is more logical, "said Da Peng. The film devoted a considerable amount of space to portraying the character of Zheng Yuting, the wife of Li Shande. Da Peng introduced that Zheng Yuting's character design is more like a woman in modern family relationships, and the team has also put more effort into the family drama, fully demonstrating the daily interaction mode between Li Shande and Zheng Yuting. (New Society)