Lost Worlds - Life In The Balance: Originally presented in IMAX theaters, this documentary provides insight into the web of life, the biological relationships of all living things and the puzzle of human survival itself.

Deep in the jungles of Guatemala, a black jaguar prowls the ruins of Tikal, a Mayan city that has lain abandoned for a thousand years. What can its fate tell us about our own cities, our own society? To find out, join narrator Harrison Ford in this exploration of our planet’s mysterious biological diversity.

With hair-raising helicopter ascents, witness the cascades of Angel Falls, the world’s highest waterfall. See carnivorous plants on the lunar landscape of Mount Roraima or a little black toad that walks and rolls instead of jumping. Tunnel into a metropolis of microorganisms in the earth's soil, swim through the kelp forests of the Pacific Ocean, and climb to the top of Venezuela's mysterious Table Mountains which inspired Sir Arthur Conan Doyle’s novel ‘The Lost World’.

This movie is designed to help viewers better understand the mysteries of our natural environment, the earth's biological diversity and how the decimation of one species has an impact on the entire ecosystem. With breathtaking aerial and underwater footage, the IMAX cameras capture it all.

Narrated by Harrison Ford. Directed by Bayley Silleck.

DVD Extras include: Expedition To The Lost World - A behind-the-scenes exploration to the world's highest waterfall, Endemic Life Of The Tepuis - An exclusive gallery of plants and insects that exist only on the Table Top Mountains of Venezuela, Commentary by Director Bayley Silleck, Making Of Featurette, A Frog's Tale - A musical children's tale, Shadow's Adventure - An animated read-a-long children's story and Theatrical Trailers.

• "Thoroughly Enjoyable" - Big Movie Zone