A dazzling overview of Australia, its geology, evolution, culture and wildlife, originally presented in IMAX theatres. The Edge, filmed on the doorstep of Australia's largest city, is about an ancient wilderness ... a labyrinth of lost worlds and magical places - beautiful and treacherous waterfalls, canyons and underground rivers, carved by streams that lead back into a world as it was ninety million years ago. In a remote ravine, 40 ancient trees survive unchanged from the age of the dinosaurs. Rappel into this world of exotic creatures and unique plant life with our modern bushwhackers.  (AUS168, $19.99)