First, the use of dialects can increase the human touch of story narration in movies.
The location of the story in the film is in Chengdu, the shooting location is in Chengdu, and the screenwriter is also from Chengdu. Therefore, using Sichuan dialect is a wise choice. It is not difficult to see that the use of Sichuan dialect in movies has made the discussion of movies and people's cognition of movies go up a storey still higher.
Second, the use of dialects can capture the delicacy of characters' emotions.
Because the location of the story is in Chengdu, and the protagonist is also from Chengdu, it is easier for actors to bring emotions into their roles and create good performances by using Sichuan dialect. Dialect is used to express the fireworks in the film, bringing the characters on the screen into life, thus achieving emotional harmony with the audience.
Performing in Sichuan dialect is the crowning touch of this film. Many people on the Internet say that the film has no deep highlights and the idea is not deep enough. Actually, I think it's ok, but I have to say that the actor's performance is still very good. The use of Sichuan dialect also made everyone see their efforts and made the audience feel better. Including the actors in the publicity screening, they also greeted everyone in Sichuan dialect, which made everyone feel more cordial. Zifeng Zhang, the younger sister of the nation, also changed her old style in the film, and appeared with a neutral style pot cover, showing the survival dilemma of today's women. So no matter from which aspect, using Sichuan dialect can be said to be beneficial and harmless.