Beijing Hairun Pictures Co., Ltd., Huaxia Film Distribution Co., Ltd., CCTV 6 Movie Channel present ; screenplay by Wai Ka Fai, Yau Nai Hoi, Ryker, Chan, Yu Xi ; produced by Johnnie To, Wai Ka Fai ; directed by Johnnie To
Columbia Pictures Film Production Asia Limited ; Huayi Brothers & Taihe Film Investment Co present in association with China film Co-Production Company ; a Lu Chuan film