If you look closely at the opening Credits, Willis O'BrienвЂs Name can be seen near вЂњTechnical EffectsвЂќ.

Stock footage was also used in the 1970 film When Dinosaurs Ruled the Earth.

Irwin Allen Directed the 1956 Film The Animal World That did feature Stop Motion Dinosaur Sequences.

Centrotyrannus ( Tyrannosaurus rex) played by both an Asian Monitor as an Adult & a Tokay Gecko as an Infant.

Ceratopspinus played by both an Alligator & a Spectacled Caiman.

Protostegosaurus played by a Monitor Lizard.

Iguanostyracus ( Iguanodon) played by a Rhinoceros Iguana.

Director Allen later stated that though he wanted stop motion models, he could only work with lizards and live creatures in accordance with the studio's budget. Special effects for the film were rather basic and involved monitor lizards, iguanas, and crocodiles affixed with miniature horns and fins. He said he wanted to start filming on 15 October 1959.ДЄllen eventually received financing to make the film from Buddy Adler, head of production at 20th Century Fox.ДЄllen said he wanted to cast Trevor Howard and Peter Ustinov in support to Rains. He hired Charles Bennett to help him adapt the book into script form and got Willis O'Brien, who worked on the 1924 film, to do models. He wanted to make the film with Trevor Howard, Peter Ustinov, Victor Mature and Gilbert Roland (who had been in the 1925 film). In 1959 Allen purchased the rights to Doyle's novel for $100,000. John Graham as Stuart Holmes - Edward Malone's employer and the father of Jennifer and David Holmes.Д¬olin Campbell as Prof. Ian Wolfe as Burton White - A professor who visited the Amazon Plateau before Challenger's expedition. Jay Novello as Costa - Gomez's assistant who also guides the expedition into the plateau. Ray Stricklyn as David Holmes - The brother of Jennifer Holmes and the son of Malone's boss Stuart Holmes. Richard Haydn as Professor Summerlee - A rival of Challenger's who joins the expedition. John as Jennifer Holmes - The daughter of the owner of the Global News.Дavid Hedison as Ed Malone - A journalist at the Global News who volunteers to join the expedition.Д¬laude Rains as Professor George Edward Challenger - The short-tempered leader of the expedition.ДЇernando Lamas as Manuel Gomez - The expedition's helicopter pilot. Michael Rennie as Lord John Roxton - An experienced big-game hunter who joins the expedition. The egg hatches when it is dropped by accident, and Professor Challenger decides to take the infant dinosaur back to London with them. During a volcanic eruption, they escape from the plateau carrying the egg of a Tyrannosaurus rex. More obstacles: the cannibals are chasing them, spider plants, the вЂњgraveyard of the damned,вЂќ and a dinosaur in a lava pit guarding the diamonds. Along the way, they encounter Burton, now living as a blind hermit. Cannibals kidnap the cast but before they can become dinner the jungle girl leads them to a passage that leads down the plateau. Roxton reveals that he had visited the plateau years before, and claims the plateau holds a bounty of diamonds.ДЄt one point, Malone and Jennifer are separated from the others and have a near death encounter with two battling dinosaurs. Roxton is mentioned several times in the diary. They discover a diary of a previous explorer, Burton, who was lost on the plateau. Roxton argues with the others, and jealousies over Jennifer leads to a fistfight between Malone and Roxton. As the expedition proceeds, Malone chases a primitive jungle girl (Vitina Marcus) through cobwebs to a giant spider. Also, in the group is a Zoological Society bigwig (Richard Haydn), helicopter pilot Gomez (Fernando Lamas) and sidekick Jose Costa (Jay Novello).ДЇirst night on the plateau, a dinosaur wrecks the helicopter. John) and son David join the group at the head of the Amazon.

The publisher's adventurous daughter, Jennifer (Jill St. This expedition group includes big game hunter Lord John Roxton (Michael Rennie), newsman Ed Malone (David Hedison) whose publisher advances $100,000 to pay for the expedition.

Much to Challenger's dismay, he has attracted a few very unscientific people to join him on his second journey to the Amazon. Professor Challenger (Claude Rains), a famed biologist and anthropologist, reports to the London Zoological Society that he has discovered living specimens of supposedly extinct animals, including dinosaurs, on an expedition to the Amazon Basin and up a plateau that time forgot.

The lost world 1992 budget