Orville O. Dull

Orville O. Dull was an American producer, director, production manager and assistant director. He was best known for his films produced for MetroGoldwynMayer. Dull was nominated during the 6th Academy Awards for the short lived Best Assistant Director category and won during the 1948 Oscars for the film The Secret Land in the category of Best Documentary He worked on overfilms from 1925 to 1951.

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Source: Wikipedia