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Shared credits
Helmut Köpping averages 6.43, Michael Ostrowski averages 6.08. 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 | as Gerhard | Writer, as Max |
| Contact High | 2009 | 6.6 | 35 | as Fahrer | Writer, as Hans Wurst |
| Kill Daddy Good Night | 2009 | · | 14 | as Ratz | as Demonstrant 1 |
| Hotel Rock'n'Roll | 2016 | · | 13 | as Gerhard Loibnegger, Director | Writer, Director, as Max |