Columbia subject headings:
Motion pictures--United States--History--20th century.
Motion pictures--United States--History--21st century.
Motion pictures--United States--Plots, themes, etc.
Harvard subject headings:
Motion picture theaters--United States--History.
Motion pictures--United States--History
Motion pictures--United States--History--20th century
Motion pictures--United States--History--21st century.
Motion pictures--United States--Plots, themes, etc.
Princeton subject headings:
Motion pictures--United States--History--20th century.
Motion pictures--United States--History--21st century.
Motion pictures--United States--Plots, themes, etc.