Shanghai Blues (1984) on Netflix

Plot summary

Tung Kwok-man and Uncle Twenty work as clowns at a Shanghai nightclub. When the Second Sino-Japanese War begins, Kwok-man prepares to join the army. As Japanese planes attack Shanghai, he meets Shu-shu while both shelter under Suzhou Bridge, and they fall in love, promising to meet there after the war. Ten years later Kwok-man comes back to Shanghai, now a songwriter and tuba player in a marching band, and searches for Shu-shu. She now works as a taxi dancer in a nightclub. Shu-shu takes in Stool, a scatterbrained young woman new in town whose money was stolen.