Director and writer
Michael Powell averages 7.19, Roland Pertwee averages 6.56. Apart that suggests 6.88; together they average 6.90, a lift of +0.03.
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.
| The Murder Party | 1934 | · | 327 | Director | Writer |
| U-Boat 29 | 1939 | 6.9 | 2,953 | Director | Writer |
