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Shared credits
Hal Roach averages 6.35, Jean C. Havez averages 7.80. Apart that suggests 7.07; together they average 6.97, a lift of −0.11.
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.
| A Sailor-Made Man | 1921 | 6.8 | 1,401 | Writer | Writer |
| Grandma's Boy | 1922 | 7.0 | 2,230 | Writer | Writer |
| Dr. Jack | 1922 | 7.1 | 1,835 | Writer | Writer |