Der gelbe Schein, a film with Pola Negri

Der gelbe Schein (The Devil’s pawn) was a German film shot 1918 partly in Warsaw, a city then still occupied by German troops. Historically very estimable, as some scenes were shot in that city’s Jewish ghetto, completely destroyed in the WWII. 
 
The film was based on a 1914 Broadway play by the English dramatist Michael Morton and there were other film versions of that play, among them one from 1931, featuring Laurence Olivier and Boris Karloff (!). And I can see some likeness with the plot of Pabst’s Diary of a lost girl, with Louise Brooks, another German film from 1929. 
 
The star of Der gelbe Schein was Pola Negri, a Polish born actress who went on to make a great career in Germany and in the U.S. She plays Lea, a teen-ager who lives in Warsaw with her ill father. She loves to read, and want to study medicine St. Petersburg in the hopes of making her father well again. But Jews were not allowed to live in the Russian capital. Except for girls carrying a « yellow passport » (Der gelbe Schein), which meant they worked as prostitutes.
Der gelbe Schein had its premier on November 22, 1918, incidentally during the very days when the German monarchy collapsed and the Weimar Republic was born. 
 
Last but not least, Der gelbe Schein can be seen on Youtube, with English texts.