Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | The Departed | 2006 | |
| Writer | Initial D | 2005 | |
| Writer | Infernal Affairs | 2002 | |
| Writer | Daisy | 2006 | |
| Writer | Infernal Affairs II | 2003 | |
| Writer | Infernal Affairs III | 2003 | |
| Director | Project Gutenberg | 2018 | |
| Writer | Project Gutenberg | 2018 | |
| Director | Once a Gangster | 2010 | |
| Writer | Once a Gangster | 2010 | |
| Director | The Lost Bladesman | 2011 | |
| Writer | Confession of Pain | 2006 | |
| Writer | The Goldfinger | 2023 | |
| Writer | Extraordinary Mission | 2017 | |
| Writer | Tokyo Raiders | 2000 |