Premier Hollywood screenwriter of the 1930s and 40s best known for his collaborations with John Ford, notably "Stagecoach" (1939). Nichols also worked with Howard Hawks, Jean Renoir, Rene Clair, George Cukor and Fritz Lang. His directorial efforts met with limited success.
Former bit player with Vitagraph who became a cinematographer in 1917 and shot numerous silent and sound films, notably "The Scarlet Pimpernel" (1935), "The Wizard of Oz" (1939) and "Singin' In the Rain" (1952). Brother of directors Arthur (1889-1960) and Richard (1894-1953) Rossen and actress Helene Rossen; married to Jean Harlow from 1933 to 1935.