Orville O. Dull ( April 25 , 1888 &ndash; December 29 , 1978 ) was an American producer , director , production manager and assistant director . He was best known for his films produced for Metro-Goldwyn-Mayer . Dull was nominated during the 6th Academy Awards for the short lived Best Assistant Director category . He won the Oscar for Best Documentary Feature in the 1948 Oscars for the film '' The Secret Land '' . He worked on over 40 films from 1925 to 1951
6th Academy Awards
6th Academy Awards
Orville O. Dull