| Title | Role | Award | Year | |
|---|---|---|---|---|
| Greystoke: The Legend of Tarzan, Lord of the Apes | Writer | Academy Award for Best Adapted Screenplay | 1984 | shortlisted |
| Shampoo | Writer | Academy Award for Best Original Screenplay | 1975 | shortlisted |
| Chinatown | Writer | Academy Award for Best Original Screenplay | 1974 | winner |
| Chinatown | Writer | Golden Globe Award for Best Screenplay | 1974 | winner |
| The Last Detail | Writer | Academy Award for Best Adapted Screenplay | 1973 | shortlisted |