In the autumn of 1928, Eisenstein left the Soviet Union for a tour of Europe. He was joined by Grigori Aleksandrov and cinematographer Eduard Tisse. The trip was supposed to allow Eisenstein and others to learn about sound motion pictures. It would also show the famous Soviet artists to the capitalist West. For Eisenstein, however, it was also an opportunity to see landscapes and cultures outside those found within the Soviet Union. He spent the next two years touring and lecturing in Berlin, Zurich, London, and Paris. In 1929, in Switzerland, Eisenstein supervised an educational documentary about abortion directed by Edouard Tissé entitled "Frauennot - Frauenglück".