Dongbiao Cao

洛克王国4：出发！巨人谷

Dongbiao Cao, Hugues Martel

Guan Xiaotong, Hu Xia

Roco Kingdom 4 is a 2015 Chinese animated fantasy adventure film directed by Hugues Martel and Dongbiao Cao and part of the Roco Kingdom film series. The film was released on August 13, 2015. It was preceded by Roco Kingdom 3.