Columbia subject headings:
Labour Party (Great Britain)--History.
Motion pictures--Great Britain--History.
Socialism and motion pictures--Great Britain--History.
Harvard subject headings:
Labour Party (Great Britain)--History.
Motion pictures--Great Britain--History
Socialism and motion pictures--Great Britain--History.
Princeton subject headings:
Labour Party (Great Britain)--History.
Motion pictures--Great Britain--History.
Socialism and motion pictures--Great Britain--History.