Der Kongress tanzt is a German musical comedy film produced in 1931 by Ufa, directed by Erik Charell, starring Lilian Harvey as Christel Weinzinger, the glove seller, Willy Fritsch as Tsar Alexander I of Russia and his doppelgänger, Uralsky, Otto Wallburg as Bibikoff, his Adjutant, Conrad Veidt as Prince Metternich, Carl-Heinz Schroth as his Secretary, Pepi, Lil Dagover as the Countess and Alfred Abel as the King of Saxony.

UFA GmbH, shortened to UFA, is a film and television production company that unites all production activities of the media conglomerate Bertelsmann in Germany. The original UFA was established as Universum-Film Aktiengesellschaft on December 18, 1917, as a direct response to foreign competition in film and propaganda. UFA was founded by a consortium headed by Emil Georg von Stauß, a former Deutsche Bank board member. In March 1927, Alfred Hugenberg, an influential German media entrepreneur and later Minister of the Economy and Minister of Agriculture and Nutrition in Adolf Hitler's cabinet, purchased UFA and transferred ownership of it to the Nazi Party in 1933.