Lessons of a Dream (German: Der ganz große Traum) is a German drama film directed by , loosely based on the life of German football pioneer Konrad Koch in the late 19th-century. In the film, Koch is one of the first English teachers in the German Empire, in Braunschweig. He introduces his students to the new sport of football, completely unknown outside of England at the time, to get them interested in English culture and the English language. Koch's liberal teaching methods upset his conservative colleagues, the student's parents, and local dignitaries.