Little Red Flowers (2006)

Liang is a four-year-old little rebel, possessed of a pair of luminous eyes and a precociously indomitable will. His father deposits him at a well-appointed residential kindergarten in post-1949 Beijing, since his parents are often away. Life at the kindergarten appears rich and colourful, made up of a variety of cheerfully sunny rituals and games meant to train these children to be good members of society.

Unfortunately the movie Little Red Flowers is not yet available on HBO Max.