A scientist dreams of prehistoric monsters. He awakes in a cavern. A dinosaur chases him, even though he tries to shoot it with his revolver. The chase continues onto the surface. The professor meets a group of prehistoric women, who flee when other monsters appear. The professor's wife finds him sleeping in the laboratory, surrounded by fossils, and wakes him with water from a siphon. This short film is only viewable at the BFI, and its generally believed to be the first film depiction of dinosaurs, here accomplished through the use of simple pantomime costumes. Description modified from IMDB.