Hai shang chuan qi

The film "I Wish I Knew" (2010) is a documentary that showcases the stories of various individuals, including film director Hou Hsiao-hsien, who share their experiences and perspectives on Shanghai's history, from its opening as a trading port in the mid-1800s to the present day. The documentary also delves into China's film history, featuring Zhao Tao, Chen Danqing, Hou Hsiao-hsien, Wang Tung, and Wei Wei sharing their insights.