Life of Galileo (German: Leben des Galilei), also known as Galileo, is a play by the twentieth-century German dramatist Bertolt Brecht. The first version of the play was written between 1937 and 1939; the second (or 'American') version was written between 1945–1947, in collaboration with Charles Laughton. The play received its first theatrical production at the Zurich Schauspielhaus, opening on 9 September 1943. This production was directed by Leonard Steckel, with set-design by Teo Otto. The cast included Steckel himself (as Galileo), Karl Paryla and Wolfgang Langhoff.