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Shared credits
Michael Ostrowski averages 6.08, Helmut Köpping averages 6.43. Apart that suggests 6.26; together they average 6.10, a lift of −0.16.
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.
| Slugs | 2004 | 5.6 | 32 | Writer, as Max | as Gerhard |
| Contact High | 2009 | 6.6 | 35 | Writer, as Hans Wurst | as Fahrer |
| Kill Daddy Good Night | 2009 | · | 14 | as Demonstrant 1 | as Ratz |
| Hotel Rock'n'Roll | 2016 | · | 13 | Writer, as Max, Director | Director, as Gerhard Loibnegger |