87 mins | Comedy | July 17, 1970
87 mins | Comedy | July 17, 1970
| IMDb rating | 5.7 |
| Producers | Constantin Film, Rialto Film |
| Original title | Was ist denn bloß mit Willi los? |
| Directors | Werner Jacobs |
| Writers | Wilhelm Lichtenberg, Eckart Hachfeld |
as Willi Winzig
as Felix Klein
as Annie Engel
as Helga
as Frank Kuhländer
as Frau Stirnimaa
as Staatssekretär Kuhländer
as Dr. Finz
as Motzmann
as Dr. Sigrid Kuhn
as Frl. Grauvogel
as Prof. Klappmüller
as Aga Ben Nemzich
as Fridolin
as Dr. Senn