November 17, 1918: The Ghost of Slumber Mountain

"The Ghost of Slumber Mountain" is an 11 minutes long movie written and directed by special effects pioneer Willis O´Brien and released November 17, 1918. It features the - at the time - pioneering technology of "stop motion animation" with five models of dinosaurs and prehistoric beasts. The main scene of this movie is also one of the most classic images of monster movies - a fierce battle between Triceratops and Tyrannosaurus. Unfortunately the producer Herbert M. Dawley, decided to re-cut the original movie from 30 minutes to less than 11 minutes, most of this material is today lost (however there exists a restored version with 19 minutes). Parts of the footage were reused in the movies "Along the Moonbeam Trail" (1920, a movie were dinosaurs live on the moon) and the documentary "Mystery of Life" (1931).