What's the name of the Hong Kong film with silver in the old lady's vest?

In spring, flowers are everywhere in the whole city.

In the movie "Flowers Fly All over the City in Spring", the old lady has three sons, a daughter, and none of them want to raise her, so the daughter thought of a plan to give the old lady a holiday in her vest, and the three sons thought that the old lady's vest was real silver, so they rushed to raise her.

Flower Fly City is a film directed by Zhu Mu and starring Ni Tian, Liu Yifan, Ingrid Hu Yin-Yin and Jinchuan. It was released in Hongkong, China on February 8th, 1975, consisting of two humorous stories.