Warren Duff averages 6.72 across 13 rated films as a writer, ahead of Ray Enright at 6.40 as a director.
Dot size shows IMDb votes. Films with fewer than 1,000 votes sit on the baseline.
| I've Got Your Number | 1934 | · | Director | Writer |
| The St. Louis Kid | 1934 | · | Director | Writer |
| Twenty Million Sweethearts | 1934 | · | Director | Writer |
| Back in Circulation | 1937 | · | Director | Writer |
| Ready, Willing and Able | 1937 | · | Director | Writer |
| Gold Diggers in Paris | 1938 | · | Director | Writer |
| The Iron Major | 1943 | · | Director | Writer |
