Hardt, Ursula (1996). From Caligari to California: Erich Pommer's Life in the International Film Wars. Providence: Berghahn Books. ISBN978-1-57181-930-7.
Leitch, Thomas M. (2007). Film Adaptation and Its Discontents: From Gone With the Wind to the Passion of the Christ. Baltimore: Johns Hopkins University Press. ISBN978-0-8018-8565-5.