Columbia subject headings:
Emigration and immigration in motion pictures.
Motion pictures--Europe--History--20th century.
Motion pictures--United States--History--20th century.
Harvard subject headings:
Cultural pluralism--Congresses
Ethnicity in motion pictures--Congresses.
Immigrants in motion pictures--Congresses.
Motion pictures--Europe--History--Congresses.
Motion pictures--Europe--Plots, themes, etc.--Congresses.
Motion pictures--North America--History--Congresses.
Motion pictures--North America--Plots, themes, etc.--Congresses.
Princeton subject headings:
Emigration and immigration in motion pictures.
Motion pictures--Europe--History--20th century.
Motion pictures--United States--History--20th century.