Director and writer
David Lean averages 7.48, Eric Ambler averages 6.98. Apart that suggests 7.23; together they average 7.50, a lift of +0.27.
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.
 Oliver Twist | 1948 | 7.8 | 15,191 | Director, Writer | Writer |
| The Passionate Friends | 1949 | 7.2 | 3,686 | Director, Writer | Writer |
