Lost in Hong Kong is a 2015 Chinese comedy film directed, co-written and co-produced by Xu Zheng, starring himself along with Zhao Wei, Bao Bei'er, and Du Juan.

Almost twenty years later, the already bald Xu has long forgotten his dreams of becoming an artist, but he can never forget Yang even though he enjoys a comfortable life with his loving wife Cai Bo (Zhao Wei), the only major problem between them being the repeated failure conceiving a child.

Meanwhile, in Hong Kong, Wong Jing is filming another riotous gangster movie, while 2 police officers (Sam Lee and Eric Kot) investigate a murder.

Buoyed by growing anticipation from fans, minor competition and the ever-growing expansion of the Chinese movie industry, Lost in Hong Kong is projected to be a box office success.

[16] Despite setting many records, the film has also attracted many negative reviews from Chinese critics and a more mixed reaction than its predecessor Lost in Thailand.

[19] Variety's Maggie Lee considered the film "tamer but still agreeable" compared to Lost in Thailand, noting the comedy's references are particularly tailored to the mainland China market, "which even Hong Kong viewers will miss."