Cowboys and dinosaurs. Sounds like fun, but not when the film is weighed down with too many soap opera elements.
Senor Jimmy (Guy Madison) and his partner Filipe are trying to make a go of cattle ranching but something or someone is killing their cows. On top of this Enrique, the local cattle king doesn't like Jimmy very much (especially after he escorts Enrique's fiance Sarita home one day). This is the soap opera part which consumes a full 43 of the film's 79 minute running time.
That's how long it takes the dino to claim his first victim, it's another 16 minutes until we see the critter. Total body count for the T-rex is just 2 humans and 1 cow.
This movie was actually remade 13 years later as the much superior Valley of Gwangi. The Beast from Hollow Mountain does have the distinction of being the first stop motion animation movie filmed in color and widescreen (the credits say it was filmed in Regiscope).
The monster was pretty weak and the scale seemed to change quite a bit. He was played by some guy in rubber dino feet in the close up walking scenes.
It still would have probably scared the crap out of me when I was kid in the 60's.
Oh by the way I downloaded this and several other movies from
http://www.archive.org.
