The Lost World is a 1960 De Luxe color and a CinemaScope fantasy adventure film loosely based on the novel of the same name by Arthur Conan Doyle and directed by Irwin Allen. The plot of the film revolves around the exploration of a flat mountain in Venezuela inhabited by cannibals, dinosaurs, carnivorous plants, and giant spiders. The cast includes Claude Rains, David Hedison, Fernando Lamas, Jill St. John, and Michael Rennie. Wikipedia
Lord John Roxton: (Talking about the native girl) She's a hundred pounds of walking dynamite.