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19/07/1969 Science Fiction, Western, Adventure 1h 36m
71
User score

Cowboys Battle Monsters in the Lost World of Forbidden Valley.

Overview

A turn of the century wild west show struggling to make a living in Mexico comes into the possession of a tiny prehistoric horse. This leads to an expedition to the Forbidden Valley where they discover living dinosaurs. They capture one and take it back to be put on display, leading to inevitable mayhem.

  1. Jim O'Connolly

    Director

Top billed cast

  1. James Franciscus

    Tuck Kirby

  2. Gila Golan

    T.J. Breckenridge

  3. Richard Carlson

    Champ Connors

  4. Laurence Naismith

    Professor Bromley

  5. Freda Jackson

    Tia Zorina - the Witch

  6. Gustavo Rojo

    Carlos dos Orsos

  7. Dennis Kilbane

    Rowdy

  8. Mario De Barros

    Bean

  9. Curtis Arden

    Lope

  10. View more

Full Cast & Crew

Reviews

A review by Dr_Nostromo
Written by Dr_Nostromo on 2026-07-05
61/100

To summarize, think "King Kong", replace Skull Island with an isolated valley, add some cowboys, and replace the ape with a T. Rex named Gwangi and there you go. Firmly placed in the 60's, this film is exactly what you'd expect on a Saturday matinee ...which at my age is something I'm far more familiar with than most people reading this. The effects were handled masterfully by stop-motion animation genius Ray Harryhausen and it had a rather high production quality for this type of film, back then. Exciting, fun, and a nostalgic joy to watch. Don't forget the popcorn! -- DrNostromo.co...read the rest
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Status
Released

Original Language
English

Budget
$0.00

Revenue
$0.00

Keywords