Drehbuchautor bei
| 1996 | Aus nächster Nähe | ||
| 1981 | Fesseln der Macht | ||
| 1976 | A Star is Born | ||
| 1973 | Play It As It Lays | ||
| 1971 | Such Good Friends | ||
| 1971 | Panik im Needle Park |
| 1996 | Aus nächster Nähe | ||
| 1981 | Fesseln der Macht | ||
| 1976 | A Star is Born | ||
| 1973 | Play It As It Lays | ||
| 1971 | Such Good Friends | ||
| 1971 | Panik im Needle Park |