In the late 1800s, a newspaper reporter attempts to impress his lady friend by joining an expedition led by Professor Challenger, which takes him along the Amazon in a search for a hidden valley populated by still-living dinosaurs. Unrelated to the Michael Crichton novel and film of the same name (which, incidentally, are named in homage to this book), this classic--but strikingly politically incorrect by todays standards--science fiction novel was filmed in the 1920s, and has been remade at least four more times (with little success).