Los Angeles was used as a river. The dinosaurs of this film were based on the artwork of Charles R. Knight. Some of the dinosaur models used in the film came into the possession of collector Forrest J Ackerman. Doyle frequently mentioned that Professor Challenger, not Sherlock Holmes, was his favorite character among his creations. Reception It received 100 % Rotten Tomatoes. In 1922, Conan Doyle showed O'Brien's test reel to a meeting of the Society of American Magicians, which included Harry Houdini. The astounded audience watched footage of a Triceratops family, an attack by an Allosaurus and some Stegosaurus footage. Doyle refused to discuss the film's origins. On the next day, The New York Times ran a front-page article about it, saying "(Conan Doyle's) monsters of the ancient world, or of the new world which he has discovered in the ether, were extraordinarily lifelike. If fakes, they were masterpieces". In April 1925, on a London-Paris flight by Imperial Airways, The Lost World became the first film to be shown to airline passengers. As film stock of the era was nitrate and highly flammable, this was a risky undertaking on a wood and fabric-hulled plane, a converted WW1 bomber, the Handley-Page O 400. This is the first dinosaur-oriented film hit, and it led to other dinosaur films, from King Kong to the Jurassic Park series. Michael Crichton's sequel to Jurassic Park was named The Lost World, in homage to Doyle's novel and film. American Film Institute recognition AFI's 100 Years...100 Thrills – Nominated AFI's 10 Top 10 – Nominated Fantasy Film Restorations George Eastman House – Laserdisc preservation with stills showing missing scenes George Eastman House – Film restoration using materials from Czech National Film Archive. Some sequences still missing and some inadvertently left out David Shepard, Serge Bromberg – DVD version using Kodascope prints, Czech archive materials and trailers. Like the George Eastman House restoration, some sequences are still missing and some inadvertently left out Flicker Alley – Blu-ray version of new 2K restoration (from various sources – original 35 mm nitrate copy, safety print, various 16 mm copies, etc.) with around eight min. of recently discovered footage and a new full orchestra score by Robert Israel (produced by Serge Bromberg of Lobster Films and dedicated to David Shepard of Film Preservation Associates) Copyright The Lost World entered the public domain on January 1, 1954, after 28 years of