I don't know where to start but one thing is for sure, this is the worst film I've ever seen.
The plot is everything but good (a guy wakes up to find out that he has "lost" his penis), the acting is poor - Joop for example mumbles his lines which makes it sometimes very hard to understand him at all - and the few attempts to be fun (Jekyll tries to have sex even without his penis) simply fail.
I really started to like German movies in the last some years but if this is the new German style I just have to stick to Hollywood productions.