The same year that he played the rampaging alien in "The Thing from Another World" a studly young James Arness is our jut-jawed hero in this agreeable adventure. Arness plays Kirk Hamilton, a mate on a 19th century clipper ship who, after a skirmish with pirates, spends some time in Australia getting his wounds treated. After helping the locals deal with this pirate problem, he and several other characters end up marooned on an uncharted island that is frozen in time, complete with oversized lizards.
This film is a little misrepresented by ad copy. Much more of an adventure film (dividing its time between action on land and action at sea) than sci-fi, it only spends its final third on this island. And we never get to see very many prehistoric animals, only the aforementioned lizards that are stock footage from "One Million B.C." ("Two Lost Worlds" didn't shoot any of its own creature scenes.) Also, while a fair amount of time is spent with Australian characters, NONE of them have Australian accents!
Still, this minor but agreeable feature shows its audience a reasonable time. At the very least, it has a very brief running time of 62 minutes. Much like many a fun B movie, it doesn't waste too much time. That is, except for portraying a love triangle between Kirk, Queensland native Elaine Jeffries (Kasey Rogers), and a resentful rancher named Martin Shannon (Bill Kennedy). The supporting cast is filled out by capable character actors such as Pierre Watkin, Tom Monroe, Michael Rye as the evil pirate leader (you'll have a good time hating this guy), Fred Kohler Jr., Tim Graham, and Richard Bartell. Young co-star Gloria Petroff is the daughter of producer Boris Petroff (a.k.a. Brooke L. Peters). Co-star Tom Hubbard (who plays John Hartley) also helped to adapt the story by Petroff and wrote the screenplay.
The movie does give its viewers an exciting finish with a volcanic eruption (more stock footage), and features some hilariously florid narration written by Bill Shaw and spoken by Dan Riss. All in all, it's amusing stuff.
Six out of 10.