Air Strike (Chinese: 大轰炸; pinyin: Dà Hōngzhà; literally: ‘Big Bombing’) also known as The Bombing or 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 production designer. 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.