The Lost World (1925)

The Lost World is a 1925 American silent fantasy giant monster adventure film, written by Marion Fairfax, adapted from Arthur Conan Doyle's 1912 novel. Directed by Harry O. Hoyt and stars Wallace Beery.

Features stop motion special effects by Willis O'Brien (a forerunner of his work on King Kong).

This was the first feature-length film made in the United States (possibly the world) to feature model animation as the primary special effect and the first dinosaur-oriented film hit. It was also the first film to be shown to airline passengers.