Influential Chinese video platform Bilibili has taken a 9.9 percent stake in Huanxi Media, the rising film and TV studio that counts blockbuster directors Xu Zheng, Zhang Yimou and Ning Hao as major shareholders. Bilibili agreed to invest $513 million Hong Kong dollars ($66 million) in Huanxi in exchange for almost 347 million shares in the studio, which is listed on the Hong Kong stock exchange.