The film you are talking about seems to be Fly, which is adapted from the excellent Xia Yan literary script of the 11th China Watch Award. The movie Flying tells a fable about idealism: Liu Bogang, a farmer in Shandong, was regarded as a mental illness since he was a child because of his abnormal behavior. Even his mother is extremely disappointed with him, and only the girl next door, Li Xiaochai, is willing to believe his "nonsense". Liu Bogang in life is different. When he was in elementary school, he asked the teacher why the village was called "Taitou Village". He came up with the idea of organizing a wedding team and earned his first money by playing ball and singing. He was the first in the village to imitate the city people to build a toilet at home (only to be laughed at by everyone in the local village for going out to use the toilet); This became the laughingstock of the villagers and made Li Xiaochai leave him and marry someone else. Of course, his craziest behavior belongs to the shock that building a plane brought to the villagers. The only thing he did before he built the plane was to fulfill his promise to buy "a bunch of pigs" for her mother. Although all this made him very painful, Liu Baigang tried his best to realize his dream. The last test flight, whether to fly into the blue sky or fail again, the film gives us a somewhat uncertain shot.