 In 1920, Lang met his future wife, the writer Thea von Harbou.She and Lang co-wrote all of his movies from 1921 through 1933, including "Dr. Mabuse, der Spieler" (Dr. Mabuse the Gambler; 1922), which ran for over four hours in two parts in the original version and was the first in the Dr. Mabuse trilogy, the five-hour "" (1924), the famous 1927 film "Metropolis", and the science fiction film "Woman in the Moon" (1929).