Director and writer
Val Guest averages 6.28, Wolf Mankowitz averages 6.16. Apart that suggests 6.22; together they average 7.20, a lift of +0.98.
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.
| Expresso Bongo | 1959 | · | 653 | Director, Producer | Writer |
| The Day the Earth Caught Fire | 1961 | 7.2 | 7,215 | Producer, Director, Writer | Writer |
| Where the Spies Are | 1965 | · | 999 | Producer, Writer, Director | Writer |
