Columbia subject headings:
Harvard subject headings:
Motion picture industry--China--History--Congresses.
Motion picture industry--France--History--Congresses.
Motion picture industry--Germany--History--Congresses.
Motion picture industry--Soviet Union--History--Congresses.
Motion picture industry--United States--Influence--Congresses.
Princeton subject headings:
Motion picture industry--China--History--Congresses.
Motion picture industry--France--History--Congresses.
Motion picture industry--Germany--History--Congresses.
Motion picture industry--Soviet Union--History--Congresses.
Motion picture industry--United States--Influence--Congresses.