Media Asia Films presents ; in association with Raintree Pictures Pte, Ltd., Eastern Dragon Film Co. Ltd. ; a Basic Pictures production ; producer, Andrew Lau ; scriptwriters, Alan Mak, Felix Chong ; directors, Andrew Lau, Alan Mak
Distribution Workshop, Bona Film Group Company ; Starlight International Media Group ; Shanghai Film Group ; Beijing Galloping Horse Film ; Polybona Films ; producers, Peng Yi, Wang Tian Yun, Chan Wing, Hung Li Li ; screenplay, Zhang Ting ; screenplay & directed by Jingle Ma