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Unknown Island (1948)

Approved  |   |  Adventure, Horror, Romance  |  15 October 1948 (USA)
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Ratings: 5.2/10 from 355 users  
Reviews: 27 user | 12 critic

Adventure-seeker Ted Osborne has convinced his finacee Carole to finance his expedition to an uncharted South Pacific island supposedly populated with dinosaurs. Piloting their ship is ... See full summary »



(story), (screenplay), 1 more credit »
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Complete credited cast:
Virginia Grey ...
Phillip Reed ...
Ted Osborne (as Philip Reed)
Richard Denning ...
Dick Wessel ...
Sanderson, 1st Mate (as Richard Wessel)
Crewman Edwards (as Daniel White)
Phil Nazir ...
Crewman Golab (as Philip Nazir)


Adventure-seeker Ted Osborne has convinced his finacee Carole to finance his expedition to an uncharted South Pacific island supposedly populated with dinosaurs. Piloting their ship is Captain Tarnowski, a ruthless alcoholic suffering from malaria- induced bouts of insanity. When they arrive at the island, they discover that the stories they have heard are all true. Will they survive to tell anyone what they've found? Written by Jean-Marc Rocher <>

Plot Summary | Add Synopsis


It's out of this world - from the world of 60,000,000 years ago! See more »


Approved | See all certifications »




Release Date:

15 October 1948 (USA)  »

Also Known As:

Het onbekende eiland  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:



Aspect Ratio:

1.37 : 1
See  »

Did You Know?


All the footage of the principal actors was shot on sound stages at General Service Studios (now Hollywood Center Studios). Only the second unit filming dinosaurs and sloth in Palmdale, Corriganville, and the beach, were on location. All shots of the principals and monsters in the same shot were achieved with rear projection effects. See more »


[first lines]
Ted Osborne: I hate bringing you to a place like this, Carol.
Carole Lane: Don't be silly, Ted. I've been in worse places in New York and I had to pay a cover charge too. Only there, it's called Slumming. I'll survive and love it.
See more »


Featured in 100 Years of Horror: Gory Gimmicks (1996) See more »

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User Reviews

Dino adventure is fun, and good for laughs.
12 April 2002 | by (Lancaster, Pennsylvania) – See all my reviews

Unknown Island is a low budget adventure-thriller in Cinecolor. The acting is creaky, and the prehistoric beasts look ridiculous. An engaged couple charter the ship of a salty captain to sail to a mysterious island rumored to have live dinosaurs. The man chartering the ship (Ted Osborne) says he only wants to take pictures of the beasts he once witnessed as he flew over the island in an airplane (we are then shown a hilarious "photograph" he took from the airplane of one of the dinosaurs), but we soon learn he is a selfish and slimy type of guy. His fiancee (Virginia Grey) is helping finance the expedition, and seems to want to only take a leisurely part in the trip. The salty captain of the ship (Barton MacLane) proves to be a masher to the lady, and a selfish jerk as he decides he wants one of the beasts to take back for the profit. His decision leaves everyone on the island longer, and in constant threat of danger from the wild, prehistoric beasts. Richard Denning has also once witnessed the horrible beasts of the island, and he plays an alcoholic who learns to sober up during the return to the island. A mutual interest becomes established between his character and the woman. Upon nearing the island we get to witness a brontosaurus pair, which are badly animated stop-motion models. The cast is "menaced" on the island by ridiculous carnivorous dinosaurs that make hilarious vocal noises, and by a sloth creature which is a man in a sloth suit (LOL.) There's even a rubber dimetrodon creeping around the island. The salty captain's workers don't always appear to be the ethnic types they're supposed to be, which is funny as a flub in the film. I will say the jungle setting does look nice, and the Cinecolor is interesting. Bad special effects, flubs, and a general ridiculousness make this movie somewhat laughable and fun to watch.

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