A lost submarine discovers a secret island where dinosaurs still live. The film, 20 minutes long, was scrapped by RKO. Approximately 4 minutes survived.
Ralf Harolde
Ned Hallet
Creation 1931 with commentary by rayharryhausen
The Land Before Time V: The Mysterious Island
Walking with Dinosaurs
The Land Before Time XIII: The Wisdom of Friends
The Land Before Time VI: The Secret of Saurus Rock
The Land Before Time XII: The Great Day of the Flyers
The Land Before Time VIII: The Big Freeze
Dino Time
The Land Before Time IX: Journey to Big Water
The Land Before Time III: The Time of the Great Giving
Jurassic World Camp Cretaceous: Hidden Adventure