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In the middle of the twentieth century, you fall off the brink of time!
Professor Challenger leads an expedition of scientists and adventurers to a remote plateau deep in the Amazonian jungle to verify his claim that dinosaurs still live there.
Irwin Allen
Irwin Allen
Lord John Roxton
Jennifer Holmes
Ed Malone
Prof. George Edward Challenger
Manuel Gomez
Prof. Summerlee
David Holmes
Costa
Native Girl
Burton White
Prof. Waldron (uncredited)
Stuart Holmes (uncredited)
