Director and writer
Alfred Hitchcock averages 6.87, Ian Hay averages 6.95. Apart that suggests 6.91; together they average 7.00, a lift of +0.09.
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 39 Steps | 1935 | 7.6 | 67,048 | Director | Writer |
 Sabotage | 1936 | 7.0 | 21,059 | Director | Writer |
| Secret Agent | 1936 | 6.4 | 9,812 | Director | Writer |
