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.

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Main Cast: Michael Rennie, Jill St. John, David Hedison, Claude Rains, Fernando Lamas, Richard Haydn, Ray Stricklyn, Jay Novello, Vitina Marcus, Ian Wolfe

Director: Irwin Allen

Writers: Charles Bennett, Irwin Allen

Editor: Hugh S. Fowler

Cinematographer: Winton C. Hoch

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