The Beast of Hollow Mountain

The Beast of Hollow Mountain is a 1956 Weird West horror movie about an American cowboy living in Mexico who discovers his missing cattle are being preyed upon by dinosaurs. The first film to show dinosaurs and cowboys in the same picture, it is notable for being based on a story idea by special effects innovator Willis O'Brien. O'Brien was also to have originally done the special effects for this movie, but this did not happen for reasons unknown. Jack Rabin, Henry Sharp and Louis de Witt ended up doing the effects, probably based on O'Brien's storyboards. This film was one of the few American/Mexican co-productions of the 50s. It was made in color and filmed in CinemaScope. It starred Guy Madison and Patricia Medina, and was produced/ co-directed by Edward Nassour.