Watch it. Götz George is always a fun to watch!

Over.
For the rest the film is as funny as a cry for help. In case you saw W.C. Fields, you know how funny that is.
If you want to see an exaggerated depiction of a restaurant full of wannabe film people, some start to a lesbian encounter, some reasonably nice boobs, watch it. If not, watch it once, but only for Götz George.
Done.

I have little doubt that everyone knows that Germans are not exactly the people for making funny movies. Even a long stay of the Pythons couldn't help that, so it is a lost case.
Over.