In 1912, Conan Doyle published The Lost World, the tale of a supposedly real expedition that had discovered dinosaurs living on a remote plateau in Venezuela. This film version is remembered primarily for its groundbreaking use of special effects; using stop-motion animation of models of prehistoric creatures, Willis H. O’Brien pioneered techniques that would be used for decades to come. Unfortunately, there seem to be no surviving prints of the film as it was initially released. Working from the available incomplete and foreign versions, as well as the film’s scenario, preservationists at the George Eastman House painstakingly recreated as much of the original version as they could.