Also, though Einstein was born in Germany he also took Swiss nationality, and then eventually became American. It's not inaccurate to say that he was German, Swiss, American, or Ashkenazi Jew.
One could object that the von Trapps were an actual family, but then again, in real life they were never all that famous (disregarding their connection to the musical). Also, the real Georg von Trapp was not a baron, but a knight.
In my experience only Austrians in Salzburg know it, others may have heard some something but don't really know the film. The "official" reason is that it's mostly ficition and that there is an earlier film about the Trapps, closer to reality. But the reason SOM hasn't been shown much in Austria has very likely more to do with the film showing other Austrians quite willingly embracing nazism ...
Its crazy that the people from Austria always try to forget about this fact.
So please try out my quizz: