Amicus Productions, the company folded before it was released, meaning AIP took sole credit. Changes The film makes some notable changes from the book: The MC flys into Caspak alone in the book, whereas he has 3 companions in the movie The lost world is a "polar continent" rather than the interior of a polar island. Bowen dies in the film and Lisa (Lys in the novels) is already dead during the events of the film, while they both survive in the novel. In the book, the ship's crew scale the mountains to come to the rescue. The book ends with two marriages; the film, none. Prehistoric creatures Brontosaurus (Poster only) Ceratosaurus Dinilysia (Portrayed by a Burmese python) Gigantophis Inostrancevia Neanderthal Pterodactylus Scutosaurus Smilodon (Poster only, see above image) Stegosaurus Styracosaurus (Poster only) Triceratops (Poster only) Critical receptionTime Out commented: "A lame sequel to Connor's earlier Edgar Rice Burroughs adaptation, The Land That Time Forgot, which was at least occasionally lively"; the Radio Times called it an "OK sequel," but a "constipated confection" with "ludicrous mechanised dinosaurs and hopeless acting from an interesting cast." The reviewer however, found that "A few shots, composed around celebrated fantasy illustrations, compensate for all the film's shortcomings"; and critic Derek Winnert similarly opined "the monsters and special effects are below par," but "there are effective moments, and there is some curiosity value in seeing singer Dana Gillespie playing Ajor"; while Blu-ray.com'' thought the film "may not be the most polished effort around, but there's fun to be had with its crazy dino encounters." References External links Eccentric Cinema – Review 1977 films 1970s fantasy adventure films British fantasy adventure films British sequel films 1970s English-language films American International Pictures films Amicus Productions films Caspak trilogy Films about dinosaurs Films based on American novels Films based on fantasy novels Films based on science fiction novels Films based on works by Edgar Rice Burroughs Films directed by Kevin Connor Films scored by John Scott (composer) Films shot at Pinewood Studios Films shot in the Canary Islands Lost world films Films about cavemen 1970s British films