The Mysterious Island

On a volcanic island near the Kingdom of Hetvia rules Count Dakkar, a benevolent leader and scientist who has eliminated class distinction among the island's inhabitants. Dakkar, his sister Sonia and her fiance, engineer Nicolai Roget have designed a submarine which Roget pilots on its initial voyage just before the island is overrun by Baron Falon, despotic ruler of Hetvia. Falon sets out after Roget in a second submarine and the two craft, diving to the ocean's floor, discover a strange land populated by dragons, giant squid and an eerie undiscovered humanoid race.

• Lucien HubbardDirector
• Maurice TourneurDirector
• Benjamin ChristensenDirector
• Lucien HubbardWriter

• Lionel BarrymoreAndre Dakkar
• Jacqueline GadsdenSonia Dakkar
• Lloyd HughesNikolai Roget
• Montagu LoveFalon
• Montagu LoveMikhail
• Snitz EdwardsAnton
• Gibson GowlandDmitry
• Dolores BrinkmanTeresa
• Karl Dane(uncredited)
• Pauline Starke(uncredited)
• Carl RoupUnderwater Creature (uncredited)
• Angelo RossittoUnderwater Creature