films from mainland China?

I am very well acquainted with Hong Kong cinema and just started getting into Taiwanese films recently. However, I noticed that one of the films on my watchlist is In the Heat of the Sun by Jiang Wen. I noticed that he is actually a director from the PRC and is identified as part of the “Sixth Generation” of Chinese filmmakers. I realized I’ve actually seen very few films from mainland China (the Chinese films I’ve seen are from Hong Kong or Taiwan). Does anyone have any good movie recommendations from mainland China? They can be from any year or period