Green Grass of Wyoming 1948 (eng.sub)

"Thunderhead," a roving, big white stallion, causes problems for the Wyoming ranchers when he leads their blue-blooded racing mares off to join his wild horse herd in the mountains. ... Director: Louis King Writers: Martin Berkeley (screenplay), Mary O'Hara (based on the novel by) Stars: Peggy Cummins, Charles Coburn, Robert Arthur