Director and writer
Ivan Reitman averages 6.11, Daniel Goldberg averages 5.96. Apart that suggests 6.04; together they average 5.87, a lift of −0.17.
Lift is the average of their films together minus the mean of their two career averages.
1979
1981
1981Best
1996
2001Dot size shows IMDb votes; lines are rolling five-film averages. Films with fewer than 1,000 votes are left out.
| Cannibal Girls | 1973 | 4.6 | 1,709 | Director, Writer | Writer, Producer, Editor |
 Meatballs | 1979 | 6.2 | 26,515 | Director | Producer, Writer |
 Heavy Metal | 1981 | 6.6 | 42,317 | Producer | Writer (not counted) |
 Stripes | 1981 | 6.8 | 86,980 | Director, Producer | Producer, Writer |
 Space Jam | 1996 | 6.5 | 232K | Producer | Producer (not counted) |
 Evolution | 2001 | 6.1 | 143K | Director, Producer | Producer (not counted) |
