Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Producer | 300 | 2006 | |
| Writer | 300 | 2006 | |
| Actor | Daredevil | 2003 | Man With Pen In Head |
| Writer | 300 - L'alba di un impero | 2014 | |
| Actor | Sin City | 2005 | |
| Writer | Sin City | 2005 | |
| Director | Sin City | 2005 | |
| Writer | Sin City | 2005 | |
| Writer | Batman: The Dark Knight Returns, Part 2 | 2013 | |
| Writer | Batman: The Dark Knight Returns, Part 1 | 2012 | |
| Director | Sin City - Una donna per cui uccidere | 2014 | |
| Writer | Sin City - Una donna per cui uccidere | 2014 | |
| Producer | Sin City - Una donna per cui uccidere | 2014 | |
| Writer | RoboCop 2 | 1990 | |
| Writer | RoboCop 2 | 1990 | |
| Writer | Batman: Year One | 2011 | |
| Writer | RoboCop 3 | 1993 | |
| Writer | RoboCop 3 | 1993 | |
| Actor | Salto nel buio | 1987 | Scrimshaw's Henchman |
| Actor | The Spirit | 2008 | Liebowitz |
| Director | The Spirit | 2008 | |
| Writer | The Spirit | 2008 | |
| Writer | Batman: The Dark Knight Returns | 2013 | |
| Actor | Legends of the Dark Knight: The History of Batman | 2005 | Himself |
| Actor | With Great Power: The Stan Lee Story | 2010 | Himself |
| Actor | Secret Origin: The Story of DC Comics | 2010 | himself |