Air Strike also known as Unbreakable Spirit is a Chinese action war-drama film directed by Xiao Feng about the Japanese bombings of the Chinese city Chongqing during World War II. Mel Gibson joined as art director. The film stars Liu Ye, Bruce Willis, Song Seung-heon and William Chan, with special appearances by Nicholas Tse, Fan Bingbing and many others. Principal photography began in May 2015 in Shanghai, China. Wikipedia