much of Hollywood was made by immigrants of various sorts, which picked up during the 30s when lots of people fled Nazi Germany and settled there and helped mak

much of Hollywood was made by immigrants of various sorts, which picked up during the 30s when lots of people fled Nazi Germany and settled there and helped make the great movies of the next few decades - case in point https://en.wikipedia.org/wiki/Billy_Wilder https://en.wikipedia.org/wiki/Billy_Wilder