The film also marks the ninth collaboration between actors Lau Ching-Wan and Louis Koo.
The film was produced by , who previously worked with the film's lead actors , and.
Wah would then act as Leung's agent in bringing down the Boss.
Albright, Edward Terry screenplay ; , , , , , Tracy Griswold, Joy Glaccum, Jeptha Evans, Clara Evans, Sarah Albright, Nathanael Albright, Julie Carrier, Michelle Le Mothe, Edward Terry, Jessie Abrams, Rita Montone, John P.
Martin Zweiback screenplay ; , , , , , Lisa Shure, , , , 9 director ; screenplay ; , , , , , , , , , , , , Peter Brouwer, Willie Adams, Debra S.
The film was released theatrically in Hong Kong on 30 July 2009.