A Cool Fish is a 2018 Chinese comedy drama film directed and co-written by Rao Xiaozhi, and starring Chen Jianbin, Ren Suxi, Pan Binlong, and Zhang Yu. The film tells the story of several nobodies, including a cop-turned-security guard Ma Xiaoyong, his sister Ma Jiaqi, and two thieves Li Haigen and Hu Guangsheng. The film premiered in China on November 16, 2018.