7.5
1973
 The Otto-Show (1973)
The Otto-Show (1973)
5.5
1992
 Otto - The Romance Film (1992)
Otto - The Romance Film (1992)
6.5
1985
 Otto - The Movie (1985)
Otto - The Movie (1985)
5.5
1989
 Otto – The Alien from East Frisia (1989)
Otto – The Alien from East Frisia (1989)
5.7
1987
 Otto – The New Movie (1987)
Otto – The New Movie (1987)