Paul M. Jensen: The Cinema of Fritz Lang. The International Film Guide Series. Barnes, New York und Zwemmer, London 1969, DNB577809431, S. 183: „[Lang] subordinates visual style to the content that is being shown.“
Paul M. Jensen: The Cinema of Fritz Lang. The International Film Guide Series Barnes, New York und Zwemmer, London 1969, DNB577809431, S. 183: „a strong, tense film with characters that are consistently close to reality“