Movie From the Past - Lost Continent - 1951

Lost Continent is a 1951 American black-and-white science fiction film drama from Lippert Pictures, produced by Jack Leewood, Robert L. Lippert, and Sigmund Neufeld, directed by Sam Newfield (Sigmund Neufeld's brother), that stars Cesar Romero, Hillary Brooke, Whit Bissell,[1] Sid Melton, Hugh Beaumont and John Hoyt.[2]

An expedition is sent to the South Pacific to search for a missing atomic-powered rocket in order to retrieve the vital scientific data recorded aboard. On an uncharted island they discover more than their rocket, now crashed atop a mysterious plateau, they find a lost jungle world populated by prehistoric dinosaurs.