Two Lost Worlds is a science fiction

Science fiction

Science fiction is a genre of fiction dealing with imaginary but more or less plausible content such as future settings, futuristic science and technology, space travel, aliens, and paranormal abilities...

/adventure film

Adventure film

Adventure films are a genre of film.Unlike pure, low-budget action films they often use their action scenes preferably to display and explore exotic locations in an energetic way....

, presenting James Arness

James Arness

James King Arness was an American actor, best known for portraying Marshal Matt Dillon in the television series Gunsmoke for 20 years...

 in his first starring role (his last name is still spelled "Aurness" in the credits) and Laura Elliott

Kasey Rogers

Kasey Rogers was an American actress, best known for playing the second Louise Tate on the popular U.S. television sitcom Bewitched.-Career:...

. The film was produced independently by Boris Petroff (dba Sterling Productions Inc.) from his original story. The film was scripted

Screenplay

A screenplay or script is a written work that is made especially for a film or television program. Screenplays can be original works or adaptations from existing pieces of writing. In them, the movement, actions, expression, and dialogues of the characters are also narrated...

 by Phyllis Parker (with later, added scenes written by Tom Hubbard and voice-over narrative by Bill Shaw), directed by Norman Dawn

Norman Dawn

Norman O. Dawn was an early film director. He made several improvements on the matte shot to apply it to motion picture, and was the first director to use rear projection in cinema....

, and distributed by Eagle-Lion Classics Inc., with a 1952 reissue by Classic Pictures Inc..

Plot

The year is 1830. The American clipper ship, the Queen, is attacked by pirates in the Hebrides (present day Vanuatu

Vanuatu

Vanuatu , officially the Republic of Vanuatu , is an island nation located in the South Pacific Ocean. The archipelago, which is of volcanic origin, is some east of northern Australia, northeast of New Caledonia, west of Fiji, and southeast of the Solomon Islands, near New Guinea.Vanuatu was...

). The ship's mate Kirk Hamilton (Arness) is wounded and heads to Queensland Colony in Australia for medical treatment. While at the hospital, he meets and falls in love with Elaine Jeffries (Rogers), the fiancee of Martin Shannon (Bill Kennedy

Bill Kennedy

Bill Kennedy may refer to:*Bill Kennedy , American actor, voice artist and TV show host*Bill Kennedy , retired American basketball player*Bill Kennedy , American technical writer...

) a rancher. A romantic rivalry develops and the pirates, who attacked Kirk and his ship kidnap her along with her friend, Nancy Holden (Jane Harlan). Kirk and Shannon pursue the pirates and they soon wind up on a volcanic island, inhabited by dinosaurs.

Trivia

There are no original dinosaur effects in the film. The dinosaurs appear 58 minutes into the film during the final reel. They were taken from stock footage recycled from the film One Million B.C.

One Million B.C.

One Million B.C. is a 1940 American fantasy film produced by Hal Roach Studios and released by United Artists. It is also known by the titles Cave Man, Man and His Mate, and Tumak....

(1940).

The film was shot in Red Canyon State Park in Cantil, California