To execute The Grapes of Wrath he drew directly and indirectly on the jump-cut technique of John Dos Passos’s U.S.A. trilogy (1938), the narrative tempo of Pare Lorentz’s radio drama Ecce Homo! and the sequential, rapid-fire quality of Lorentz’s documentary films The Plow That Broke the Plains (1936) and The River (1937), the stark visual effects of Dorothea Lange’s photographs of Dust Bowl Oklahoma and California migrant life, the timbre of the Greek epics, the rhythms of the King James Bible, the refrains of American folk music, the philosophical implications of Darwinism, the view of
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