The Ghost of Slumber Mountain is a 1918 film written and directed by special effects pioneer Willis O’Brien, produced by Herbert M. Dawley, and starring both men. It is the first movie to show live actors and stop-motion creatures together on the screen and is often cited as a trial run for The Lost World.
The Ghost of Slumber Mountain originally took up 3000 feet of film and three reels, equivalent to approximately 40 minutes. However, after the film premiered at the Strand Theater, manager Walter Hayes ordered Dawley to cut the film down to about one reel because it was too long. A restored version runs approximately 19 minutes. The rest of the footage is presumed to be lost.
In a dream Uncle Jack looks through a magic telescope owned by the ghost of a hermit and sees what life was like millions of years ago, including a battle between prehistoric monsters
Director: Willis H. O’Brien (uncredited)
Stars: Herbert M. Dawley, Willis H. O’Brien