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Shared credits
Don Calfa averages 5.99, Mark Rydell averages 6.33. Apart that suggests 6.16; together they average 6.70, a lift of +0.54.
Lift is the average of their films together minus the mean of their two career averages.
Dot size shows audience votes; lines are rolling five-film averages. Films below the source vote floor are left out.
| Cinderella Liberty | 1973 | 6.7 | 31 | as Lewis | Producer, Director, as Gutteral Mischief (as Marty Augustine) |
 The Rose | 1979 | 6.7 | 138 | as Don Frank | Director |
