The Lost World is a 1992 film, based on the book of the same name by Sir Arthur Conan Doyle. The movie is set in Africa rather than the books setting of South America, and the character of Lord John Roxton has been replaced with a female character played by Tamara Gorski.
The British scientific community finds his claims laughable, and Challenger struggles to gather an exploration team. He eventually takes Malone and Jenny Nielson, a wildlife photographer and the daughter of a rich American contributor to the sciences, who funds the entire expedition. A newsboy named Jim stows away on the trip, and the antagonistic Professor Summerlee joins them when he discovers Challenger has given him a blank map.Challenger arrives at a native village in Africa, where the team is joined by a female guide named Malu. They find the cliff from the picture and reach the top, but Gomez, the brother of a native who was killed on Challengers first journey here, strands them with no way back down. Exploring the lost world to find another way home, the team finds dinosaurs, from a pair of anatosaurus to a pterodactyl rookery. ........
Source: Wikipedia