Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Planet of the Apes - Il pianeta delle scimmie | 2001 | |
| Writer | Mona Lisa Smile | 2003 | |
| Writer | I molti santi del New Jersey | 2021 | |
| Writer | Superman IV | 1987 | |
| Writer | Superman IV | 1987 | |
| Writer | Il grande Joe | 1998 | |
| Writer | Codice Mercury | 1998 | |
| Writer | Il gioiello del Nilo | 1985 | |
| Writer | Flicka - Uno spirito libero | 2006 | |
| Writer | A Beverly Hills... signori si diventa | 1993 | |
| Writer | Amore con interessi | 1993 | |
| Writer | La leggenda di Billie Jean | 1985 | |
| Writer | A volte ritornano | 1991 | |
| Writer | Ore disperate | 1990 |