From Wikipedia the free encyclopedia Harry O Hoyt 6 August 1885 29 July 1961 was an American screenwriter and film director whose career began in the silent era His 1925 film The Lost World based on the book by Arthur Conan Doyle is notable as a pioneering effort in the use of stopmotion animation He was a brother of actor Arthur Hoyt who appeared in The Lost World Description above from the Wikipedia article Harry O Hoyt licensed under CCBYSAfull list of contributors on Wikipedia