Director and writer
Robert Stevenson averages 6.54, Roland Pertwee averages 6.56. Apart that suggests 6.55; together they average 6.30, a lift of −0.25.
Lift is the average of their films together minus the mean of their two career averages.
Dot size shows IMDb votes; lines are rolling five-film averages. Films with fewer than 1,000 votes are left out.
| King Solomon's Mines | 1937 | 6.3 | 1,676 | Director | Writer |
| Non-Stop New York | 1937 | · | 590 | Director | Writer |
