Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Highlander 2: The Quickening | 1991 | |
| Writer | The Watcher in the Woods | 1980 | |
| Writer | The Golden Voyage of Sinbad | 1973 | |
| Writer | The Golden Voyage of Sinbad | 1973 | |
| Writer | See No Evil | 1971 | |
| Creator | Thriller (1973) | ||
| Writer | Dr Jekyll & Sister Hyde | 1971 | |
| Producer | Dr Jekyll & Sister Hyde | 1971 | |
| Director | Captain Kronos: Vampire Hunter | 1974 | |
| Writer | Captain Kronos: Vampire Hunter | 1974 | |
| Writer | Captain Kronos: Vampire Hunter | 1974 | |
| Producer | Captain Kronos: Vampire Hunter | 1974 | |
| Writer | And Soon the Darkness | 1970 | |
| Writer | And Soon the Darkness | 1970 | |
| Producer | And Soon the Darkness | 1970 |