 You had to look like Kirk Douglas, Tony Curtis, Paul Muni or Paulette Goddard and change your name.They were Jews, but didn’t “look Jewish” and employed the camouflage of non-Jewish names.Hence Julius Garfinkle became John Garfield, Marion Levy became Paulette Goddard, Emmanuel Goldenberg became Edward G. Robinson and Muni Weisenfreund became Paul Muni.