Marshall Brickman averages 6.63 across 10 rated films as a writer, ahead of Thomas Baum at 6.20.
Dot size shows IMDb votes. Films with fewer than 1,000 votes sit on the baseline.
| Simon | 1980 | 6.3 | Director, Writer | Writer |
| The Manhattan Project | 1986 | 6.1 | Director, Producer, Writer | Writer |
