Director and writer
Irwin Allen averages 5.20, Charles Bennett averages 6.58. Apart that suggests 5.89; together they average 5.50, a lift of −0.39.
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.
| Dangerous Mission | 1954 | · | 986 | Producer | Writer (not counted) |
| The Story of Mankind | 1957 | 4.8 | 1,713 | Director, Writer, Producer | Writer |
| The Big Circus | 1959 | · | 927 | Producer, Writer | Writer (not counted) |
| The Lost World | 1960 | 5.5 | 5,161 | Producer, Director, Writer | Writer |
| Voyage to the Bottom of the Sea | 1961 | 6.0 | 7,261 | Director, Writer, Producer | Writer |
| Five Weeks in a Balloon | 1962 | 5.7 | 1,526 | Producer, Director, Writer | Writer |