Bad teacher film

Just got back from a movie theater. German translation was not quite accurate - in English movie trailer the main character once said "fuck off!" which was translated to German as "Nein, Danke!".

The mean age of the audience was 12 years... So may be this silly translation may have been justified but the plot can be hardly comprehended by most of the kids younger then 13.

Good practice for me to understand colloquial German, not a nice film overall.