I found its story totally lame. What about this synopsis after all? And it solely relies on the (already-way-too-mainstream) shocking sexually-appealing feature.
Also, German seems like the easiest language to be learned by a regular Brazilian, as the confusing time line does not allow to understand how long the main character spends on Germany. Same for his young brother, for whom the language-learning process has - again - a lame explanation.
Score is 3 out of 10 just for the few nice shots, even though the slowness of this movie is definitely boring.