- Professor George Edward Challenger: [to the people at the Zoological Institute] I have seen these creatures with my own eyes. Curupuri. To the Indians, creatures of the supernatural. And well they might be. For we know them as gigantic creatures of the long dead Jurassic period. In other words: live dinosaurs!
- Lord John Roxton: [Talking about the native girl] I'll tell you what she is. She's a hundred pounds of walking dynamite.
- Costa: Dynamite?
- Manuel Gomez: She's explosive but - lovely.
- Costa: What can it mean?
- Professor George Edward Challenger: It means that the news of my great discovery will never be known to the outside world. They undoubtedly intend to kill us.
- Costa: Kill us?
- Professor George Edward Challenger: Why not? An invasion of privacy gives a man the right to kill. *We* are the invaders. Besides, they are obviously cannibals.
- Costa: Ay, cannibals. No!
- Professor George Edward Challenger: Young idiot! Have you lost your wits. Who let that girl out?
- David Holmes: She wasn't trying to escape, sir.
- Professor George Edward Challenger: She... She told you so, I suppose. In the language of love, undoubtedly.
- [last lines]
- Professor George Edward Challenger: [watching the destruction from a distance] My Lost World. Lost forever.
- Lord John Roxton: Now we'll never prove anything in London.
- Professor George Edward Challenger: Oh, yes, we will. I thought this might help.
- [reveals a dinosaur egg]
- Lord John Roxton: One of the dinosaur eggs. Hardly worth the lives of all those men. But then nor were these.
- [reveals a handful of diamonds]
- Jennifer Holmes: Johnny! How'd you manage those?
- Lord John Roxton: No fire monster's big enough to deprive you of a wedding gift.
- Manuel Gomez: Well, "Mrs." is still the best title for a girl.
- David Holmes: But, uh, don't you want any of them?
- Lord John Roxton: Well, I, uh, I kept a few for the rest of us.
- Jennifer Holmes: [the egg is dropped and cracks open] A baby dinosaur!
- Professor George Edward Challenger: Ha! Tyrannosaurus rex!
- Lord John Roxton: Ha! But will it live, Professor? Will it be all right?
- Professor George Edward Challenger: It'll live long enough to grow as big as a house and terrify all London.
- David Holmes: Then what'll we do?
- Professor George Edward Challenger: Well, we'll move out of London as fast as possible!
- [all chuckling]
- Ed Malone: It's much too risky.
- Jennifer Holmes: Please don't be alarmed, Mr. Malone. If things get too risky for you, well, I'll just hold your hand.
- Jennifer Holmes: My name is Jennifer Holmes - and I can ride, fly, and shoot better than any man I know. I want to go too.
- Professor George Edward Challenger: There will be no women on my expedition.
- Jennifer Holmes: But, Professor.
- Professor George Edward Challenger: That's final!
- Prof. Waldron: May I hear from other volunteers?
- Ed Malone: [to Jennifer] It's a man's world.
- Jennifer Holmes: Then why don't you volunteer?
- Professor George Edward Challenger: I further propose that a new expedition, consisting of Professor Summerlee and myself together with two impartial and acceptable members of this audience, proceed at once to the Amazon to investigate my claim of the existence of a Lost World.
- Prof. Summerlee: You must forgive us, Professor, but did you say dinosaurs?
- Professor George Edward Challenger: Your hearing is excellent.
- Prof. Summerlee: Were they big dinosaurs, Professor?
- Professor George Edward Challenger: I do not deal in small dinosaurs.
- Prof. Waldron: Lord Roxton, your eminence in the field of exploration is well-known. I feel sure the professors will approve.
- Professor George Edward Challenger: Oh, by all means. You're welcome, sir. Summerlee?
- Prof. Summerlee: For myself, I prefer a man of less notoriety. From what I hear, Lord Roxton's more famous - shall I call them escapades - which have been so widely reported in the gossip columns, have hardly been in the interest of science. However.
- Professor George Edward Challenger: A body of land uplifted by volcanic eruption a hundred million years ago - cut off from the march of time by the unscalable nature of its cliffs. A land where monsters live. George Edward Challenger's Lost World!
- David Holmes: They've got them.
- Ed Malone: Who's ''they''?
- David Holmes: War-painted natives. They dragged us off. I only escaped by the skin of my teeth.
- Lord John Roxton: Listen to me. Don't you recognize my voice? Johnny Roxton.
- Burton White: Roxton? Johnny Roxton?