The ending
I was wondering what you thought of the ending.
My own take was this: Because Xiao Tao told Taisheng that she would kill him if he were ever unfaithful to him, and shes finds out about his fling with Qun (who left for France), she decided to poison them both during the night at her friend's house. Then after the screen goes black, Taisheng asks her if it's all over and she says "No, it's just the beginning"...
I took this to mean that the whole cycle of rural migrants coming to Beijing would begin again, with new people arriving at the park and seeing their dreams shattered and resorting to the same kind of desperate measures, over and over. I don't know if it was supposed to be that bleak, but that's was just how I saw it...