Mai Da, who was facing multiple charges, begged Noodles to kill him, hoping to atone for his sins and escape legal justice, but Noodles refused. In desperation, Mai Da committed suicide by jumping into the garbage crusher. After this paragraph, the biggest climax of the film is revealed. The garbage truck drove by, and oncoming were three cars crowded with young people. They were laughing and laughing in the car, and the background music changed from the previous lyrical to the cheerful "God Bless America."

Then the camera cuts back to 1933, where Noodles takes opium to anesthetize himself in a Chinese club. The smile he left us in the end was the last moving expression before he lost all happiness in his life. At this point, all the love, friendship, betrayal, crazy, exciting, sad and touching past events experienced in this life all merge together to create the extremely strong and heart-shaking emotion of Once Upon a Time.

I think both Martha and Deborah live too ignorantly, but most people are like this too, and they don’t have the courage and courage they have. But their lives, which appear gorgeous on the surface, are actually extremely bleak.