Original: In the autumn of 1928, with October still under fire in many Soviet quarters, Eisenstein left the Soviet Union for a tour of Europe, accompanied by his perennial film collaborator Grigori Aleksandrov and cinematographer Eduard Tisse.
Simplified: 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.