Unknown Island (1948)

Approved  |   |  Adventure, Horror, Romance  |  15 October 1948 (USA)
Your rating:
    1 2 3 4 5 6 7 8 9 10 -/10 X  
Ratings: 5.2/10 from 360 users  
Reviews: 28 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 »
0Check in

Watch Now

$0.00 with Prime Video




Learn more

People who liked this also liked... 

Sci-Fi | Drama
    1 2 3 4 5 6 7 8 9 10 4.3/10 X  

A space-ship gets lost and is forced to make an emergency landing on an unknown planet. The planet looks much like Earth, only with no trace of civilization. Soon the crew discovers that ... See full summary »

Director: James K. Shea
Stars: Mary Appleseth, Harvey Shain, Derna Wylde
Certificate: Passed Sci-Fi
    1 2 3 4 5 6 7 8 9 10 3/10 X  

Major Joe Nolan heads a rescue mission in the South Pacific to recover a downed atomic rocket. The crew crashlands on a mysterious island, and spends much time rock-climbing. They meet up ... See full summary »

Director: Sam Newfield
Stars: Cesar Romero, Hillary Brooke, Chick Chandler
Adventure | Fantasy | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 5.8/10 X  

Three men and a woman crash-land in a deep crater in Antarctica, where they find a prehistoric world.

Director: Virgil W. Vogel
Stars: Jock Mahoney, Shirley Patterson, William Reynolds
King Dinosaur (1955)
Adventure | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 1.9/10 X  

A new planet moves into our solar system and four scientists (two couples) are sent to explore Planet Nova. In between romantic interludes, the cast faces an iguana masquerading as a ... See full summary »

Director: Bert I. Gordon
Stars: William Bryant, Wanda Curtis, Douglas Henderson
Target Earth (1954)
Horror | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 5.7/10 X  

Giant robots from Venus invade Chicago. Stranded in the deserted city are Frank and Nora (who has recently attempted suicide).

Director: Sherman A. Rose
Stars: Richard Denning, Kathleen Crowley, Virginia Grey
Adventure | Fantasy | Romance
    1 2 3 4 5 6 7 8 9 10 5.8/10 X  

Tumak, member of the prehistoric Rock tribe, is exiled and makes his way to the more peaceful Shell tribe, where he is taken in and taught manners by the lovely Loana. Forced to leave the ... See full summary »

Directors: Hal Roach Jr., Hal Roach
Stars: Victor Mature, Carole Landis, Lon Chaney Jr.
Adventure | Romance | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 4.4/10 X  

When the American clipper ship "The Queen" is attacked by pirates off the Hebrides in 1830, Mate Kirk Hamilton is injured and must be put ashore at Queensland Colony, Australia, for ... See full summary »

Director: Norman Dawn
Stars: Kasey Rogers, James Arness, Bill Kennedy
The Cyclops (1957)
Horror | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 4.4/10 X  

An expedition to Mexico finds and does battle with a mutated 25-foot man with one big eye.

Director: Bert I. Gordon
Stars: James Craig, Gloria Talbott, Lon Chaney Jr.
Film-Noir | Thriller
    1 2 3 4 5 6 7 8 9 10 6.5/10 X  

On the beach one night, Christine Faber, two years a widow, thinks she hears her late husband Paul calling out of the surf...then meets a tall dark man, Alexis, who seems to know all about ... See full summary »

Director: Bernard Vorhaus
Stars: Turhan Bey, Lynn Bari, Cathy O'Donnell
Gog (1954)
Drama | Horror | Romance
    1 2 3 4 5 6 7 8 9 10 5.6/10 X  

A security agent investigates sabotage and murder at a secret underground laboratory, home of two experimental robots.

Director: Herbert L. Strock
Stars: Richard Egan, Constance Dowling, Herbert Marshall
Horror | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 5.1/10 X  

Volcanic activity frees giant scorpions from the earth who wreak havoc in the rural countryside and eventually threaten Mexico City.

Director: Edward Ludwig
Stars: Richard Denning, Mara Corday, Carlos Rivas
The Vampire (1957)
Horror | Sci-Fi | Thriller
    1 2 3 4 5 6 7 8 9 10 5.8/10 X  

A small town doctor mistakenly ingests an experimental drug made from the blood of vampire bats which transforms the kindly medic into a bloodthirsty monster.

Director: Paul Landres
Stars: John Beal, Coleen Gray, Kenneth Tobey


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 <rocher@fiberbit.net>

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 »


Referenced in Trumbo (2015) See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Cheap special effects, but entertaining
3 March 2007 | by (Redondo Beach, CA) – See all my reviews

A lot of this movie looks like a re-do of some elements of King Kong, which had been released 15 years earlier. The stop-motion technology of Kong was here replaced by a forced-perspective split-screen approach to animate the ferocious gigantic beasts. Compared to today's CGI, the effects may seem as primitive as the dinosaurs it shows, but it's a fun movie to watch.

There's a bunch of tough sea dogs, one pretty girl, and some others introduced in pre-adventure bar room brawls and so on. Some explorer guy hears legends of the existence of the mysterious uncharted island, where prehistoric life has somehow avoided extinction, and books the sea dogs for a voyage to the island. Sound familiar? Apparently, this guy had heard about horrible deaths in the earlier film, and had aspirations to get killed in the same way.

I love the creatures in this film. They're not as scary as others you've seen, but they're certainly a novelty to see. They move slowly and stare with curiosity at panicky human characters who like to shoot at them. In a couple of scenes, one of the grinning dinosaurs even looks like he's about to sing the Barney song, "I Love You, You Love Me." Be on the lookout for Kong's toothy cousin, who stages the obligatory rematch with one of Barney's more vicious relatives.

It's all some good dinosaur fun, which was probably quite cool for its time, and it certainly can still entertain today, if you look past the cheap effects. The actors approach their characters with enthusiasm, and there is a good balance of character development, action, and plot development. A decent watch, for some fun drive-in nostalgia.

5 of 7 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
Discuss Unknown Island (1948) on the IMDb message boards »

Contribute to This Page

Create a character page for: