Film School: The Ghost of Slumber Mountain
Subscriber Exclusive

Welcome to Film School! This is a column focused on movie history and all the stars, filmmakers, events, laws and, yes, movies that helped write it. Film School is a place to learn—no homework required.
In our biggest movies, reality has become less and less relevant. I don’t mean dramatic realism, but the tangible actors, sets and props that take up the physical space shot by the camera. A-listers stand around in green-screen warehouses, talking to tennis balls and hoping that everything makes sense once the CGI sweatshop fleshes things out. From this, we get digital mush like Ant-Man and the Wasp: Quantumania, or the uncanny video game worlds derived from Industrial Light & Magic’s real-time StageCraft backgrounds. While there have certainly been amazing cinematic feats blending practical effects, optical illusions and computer wizardry, there’s been an increasing shift towards relying on the latter in place of…anything else. It feels like a hyper-modern problem, but strangely enough, the first domino to fall in this fantastical sequence was way back in 1918, with The Ghost of Slumber Mountain.
The Ghost of Slumber Mountain—the first movie where human actors and characters animated by stop-motion seem to share the same space on-screen—was the culmination of a series of shorts by special effects pioneer Willis O’Brien. After he’d made a handful of prehistoric-themed movies for Thomas Edison, O’Brien got hired by Herbert M. Dawley to write and direct a nice meaty follow-up mining the same vein. Paleontology was flourishing in the public eye; Barnum Brown had discovered the first T-Rex remains only 16 years prior. It was time to capitalize on dino-fever at the tail end of a historical boom period actually called “The Bone Wars,” and O’Brien was in the unique position of being able to bring these creatures to some semblance of life. Brown was even able to be a technical advisor on the film!
The 18 surviving minutes of The Ghost of Slumber Mountain, cut down from a lost 40-minute version, give us a wide range of dinosaur activity while also welcoming us into its world through human actors who, at times, seem to be in imminent danger from these ancient beasts.
The plot is contained by a framing device, heard by children. It’s a tall tale, told by a character who is effectively Calvin’s dad from Calvin & Hobbes: He and his fellow adventurer once found an abandoned cabin on Slumber Mountain, and looked through its ghostly former resident’s viewfinder-like device. This allowed him to see the distant past of Slumber Mountain, full of dinosaurs and other massive creatures from antiquity. The second half of The Ghost of Slumber Mountain reveals its menagerie: You’ve got a lethargic Brontosaurus, a bipedal bird snacking on a snake, a pair of dueling Triceratops and a hungry T-Rex.