Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Die Chroniken von Narnia: Der König von Narnia | 2005 | |
| Writer | Das Lächeln der Sterne | 2008 | |
| Writer | Kit Kittredge: An American Girl | 2008 | |
| Writer | Experiment Killing Room | 2009 | |
| Writer | Der älteste Schüler der Welt | 2010 | |
| Writer | The Nightingale | 2027 | |
| Writer | Country of My Skull | 2004 | |
| Writer | Verurteilt - Der Fall Jefferson | 1999 |