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Noel Langley (25 December 1911 – 4 November 1980) was a South African-born (later naturalised American) novelist, playwright, screenwriter and director. He wrote the screenplay which formed the basis for the 1939 film The Wizard of Oz and is one of the three credited screenwriters for the film. His finished script for the film was revised by Florence Ryerson and Edgar Allan Woolf, the other credited screenwriters. Wikipedia