The Lost 15 Boys: The Big Adventure on Pirates' Island is a 2013 Chinese-Japanese animated adventure film directed by Xiaohan, Mao Qichao, Ba Yunfeng, Zhang Bing and Ryūtarō Nakamura. It is based on the novel Two Years' Vacation by Jules Verne. The film was released on November 16, 2013, in Japan and on October 1, 2014, in China.