Försvunnen värld was released in the year 1960。Försvunnen värld is also called as The Lost World, Viidakon kosto, Mundo perdido, Mondo perduto, Monde perdu, Forsvundne verden, Versunkene Welt。

Professor Challenger leads team of scientists and adventurers to a remote plateau deep within the Amazonian jungle to investigate reports that dinosaurs still live there.

Försvunnen värld actors and actresses include Claude Rains, David Hedison, Jill St. John。