I have been living for almost 4 years in Germany... and Im still not fully understanding the culture... I also read the first part of the book... Well the humor for me is not so great (in general german humor...), but the movie isn't complete rubbish either... I think germans may find it really funny... I probably have prejudices and am tired of the cliques at the moment, so I am biased to judge.. The movie is also pretty political. Connotation to AfD (the right extremist party) etc. which is for me not were interesting.. Also the Kreuzberg multi culti, the späti etc. for many non-german viewers may be "lost in translation". I was deciding between 6 and 7.. the ending was quiet weird...