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Shared credits
Robert E. Howard averages 5.54, Roy Thomas averages 5.55. Apart that suggests 5.55; together they average 5.23, a lift of −0.31.
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.
 Conan the Destroyer | 1984 | 5.9 | 91,522 | Writer | Writer |
 Red Sonja | 1985 | 5.1 | 48,830 | Writer | Writer |
| Red Sonja: Queen of Plagues | 2016 | · | 401 | Writer | Writer |
 Red Sonja | 2025 | 4.7 | 9,978 | Writer | Writer |
