METROPOLIS, The Lights Fantastic: Semiotic Analysis of Lighting Codes in Relation to Character and Theme

'''Roth, Lane. "METROPOLIS, The Lights Fantastic: Semiotic Analysis of Lighting Codes in Relation to Character and Theme."' Literature/Film Quarterly'' 6.4 (Fall 1978): 342-46.

See esp. for analysis of oppositions among Maria, the "robotrix" who impersonates Maria; see also for the the mad scientist/political adviser, Rotwang.