Shared credits
I.A.L. Diamond averages 7.01, Walter Matthau averages 6.73. Apart that suggests 6.87; together they average 7.05, a lift of +0.18.
Lift is the average of their films together minus the mean of their two career averages.
1966
1969
1974BestDot size shows IMDb votes; lines are rolling five-film averages. Films with fewer than 1,000 votes are left out.
 The Fortune Cookie | 1966 | 7.2 | 17,532 | Writer | as Willie Gingrich |
 Cactus Flower | 1969 | 7.2 | 13,586 | Writer | as Dr. Julian Winston |
 The Front Page | 1974 | 7.3 | 16,877 | Writer | as Walter Burns |
| Buddy Buddy | 1981 | 6.5 | 5,601 | Writer | as Trabucco |
