Sorry people, I understand your happniess for a successful German comedy, but it is unfortunately remade. Original movie is Perfetti Sconosciuti. There are other versions such as Cebimdeki Yabanci, Le Jeu. Please do some research already :)
My expectations for the director is very low though- considering his previous movies/series (e.g Türkisch für Anfänger), we are familiar with his non-existant humor. He does some so-called 'irony' for a comedy, which is nothing but humiliating Turkish people for years, (and which is completely unrealistic for the majority of Turkish people). Such a waste of time.