His last cinematical works came in the 40s into being with "Die Fledermaus" (1944) - released in 1946, "Umwege zu Dir" (1944) - released in 1947, "Die Nacht der Zwölf" (1944) - released in 1949 and "Das Dementi/Verlobte Leute" (1944) - released in 1950.