Photographer Xixi, what movie?

/subject/3 13 1903/

Xixi's father is a Tibetan mountaineer, and his mother volunteered to go from Chengdu to Tibetan pastoral areas for education. Xixi, whose grandparents grew up in the mainland, misses her parents very much. He used his summer vacation to visit his parents in Tibet alone. However, in Tibet, he only saw his father, not his mother. When he asks where his mother is, his father always prevaricates. Xixi suspects that mom and dad are divorced. In a fit of pique, with the help of Mei Duo as a child, he followed the Tibetan Opera Troupe to the grassland to find his mother. In the process of searching, he mistook a dancer and a young female teacher of Han nationality for his mother, which caused a series of misunderstandings, and Xixi, who could not find her mother, became more and more depressed. But Xixi's father, Tenzin, found Xixi missing. He was very anxious and looked around. Finally, he found Xixi on the grassland through Sam, a good friend of Xixi's mother. Tenzin couldn't stand the pleading of his son Xixi, and finally promised to take Xixi to the pastoral primary school where his mother taught. When I arrived at the pastoral primary school, my father, Tenzin, endured the sadness and told Xixi that my mother gave her young life in the avalanche to save the children in distress in the pastoral area and stayed on the snowy mountain forever. He was so sad that he called his mother to the grassland and snow-capped mountains again and again. ...