"I had just read 'The Silent World' by Jacques Cousteau and found it to be new and exciting. So when that picture came along, I wrote all the underwater stuff and went to Roger and told him I’d direct all the underwater parts for $100. He said 'okay.' If I had just asked, he would have said 'no.' I had to put it in a way that he would jump at. So I directed all that stuff and it was rather funny. I’d be down at the bottom of the tank at Marineland trying to get actors to do something while (director of photography) Floyd Crosby was hammering at the glass window trying to get them to do something else. It was all pretty silly."

"Roger came to me and said, 'I want to make a picture called 'Attack of the Giant Crabs,' and I asked, 'Does it have to be atomic radiation?' He responded, 'Yes.' He said it was an experiment. 'I want suspense or action in every scene. No kind of scene without suspense or action.' His trick was saying it was an experiment, which it wasn't. He just didn't want to bother cutting out the other scenes, which he would do."

"James Arness — FBI Agent Robert Graham"

"Joan Weldon — Dr. Pat Medford"

"Edmund Gwenn — Dr. Harold Medford"

"James Whitmore — Sgt. Ben Peterson"

"The Amazing New Warner Bros. Sensation!"

"Kill one and two take its place!"

"A horror horde of crawl-and-crush giants clawing out of the earth from mile-deep catacombs!"

"Nestor Paiva — Prof. Etienne Lafarge"

"Alan Napier — Elinu, the High Priest"

"Hugh Beaumont — Dr. Jud Bellamin"

"Cynthia Patrick — Adad"

"John Agar — Dr. Roger Bentley"

"From a Lost Age... HORROR Crawls from the Depths of the Earth!"

"Terrifying monsters from a lost age!"

"In this thin air it's possible to imagine anything."

"It's the light! Their eyes can't tolerate the light!"

"In archaeology all things are possible."

"Archaeologists are underpaid publicity agents for deceased royalty."

"The thing that impresses me the most is the complete and utter silence. You can almost hear it."

"Frank Baxter — himself"

"Robin Hughes — First Officer"

"Rodd Redwing — Nazar"

"Phil Chambers — Dr. Paul Stuart"

"Just a scientific experiment at first, that's all. To do something no other man in the world had done. But there's more to it than that, Kemp - I know now. It came to me suddenly. The drugs I took seemed to light up my brain. Suddenly I realized the power I held. The power to rule, to make the world grovel at my feet! [laughs] We'll soon put the world right now, Kemp, you and I."

"Are you satisfied now, you fools?! It's easy, really, if you're clever. A few chemicals mixed together, that's all, and flesh and blood and bone just fade away! [lifts a bottle filled with a serum] A little of this injected under the skin of the arm every day for a month. An invisible man can rule the world! Nobody will see him come, nobody will see him go. He can hear every secret! He can rob, and wreck, and kill! [laughs madly]"

"[as he takes off his clothes] They've asked for it, the country bumpkins. This will give them a bit of a shock, something to write home about. A nice bedtime story for the kids, too, if they want it."

"All right, you fools. You've brought it on yourselves! Everything would've come right if you'd only left me alone. You've driven me near madness with your peering through the keyholes and gaping through the curtains, and now you'll suffer for it! You're crazy to know who I am, aren't you?! All right! I'll show you! [removes his false nose] Here's a souvenir for you! [removes his glasses] And one for you! [starts unravelling his bandages] I'll show you who I am, and what I am! [laughs madly]"

"Leave that alone and get out of here!"

"There must be a way back. God knows there's a way back! If only they'd leave me alone..."

"Una O'Connor — Jenny Hall"

"Henry Travers — Dr. Cranley"

"William Harrigan — Dr. Arthur Kemp"

"Gloria Stuart — Flora Cranley"

"Claude Rains — Dr. Jack Griffin"

"Catch me if you can!"

"H.G. Well's Fantastic Sensation"

"Dr. Cranley: I think we must tell the police that Griffin has disappeared."

"Constable Jaffers: He's invisible, that's what's the matter with him. If he gets the rest of them clothes off, we'll never catch him in a thousand years."

"[his last words] I knew you would come to me, Flora. I wanted to come back to you. My darling... I failed. I meddled in things... that man must leave alone..."

"Thank you, Kemp, for opening the window. You're a true friend, Kemp. A man of trust. I've no time now, but believe me, as surely as the moon will set and the sun will rise, I shall kill you tomorrow night. I shall kill you even if you hide in the deepest cave of the Earth. At ten o'clock tomorrow night, I shall kill you."

"Power, I said! Power to walk into the gold vaults of the nations, into the secrets of kings, into the Holy of Holies. Power to make multitudes run squealing in terror at the touch of my little invisible finger. Even the moon's frightened of me! Frightened to death! The whole world's frightened to death!"

"The secret of invisibility lies there in my books. I shall work in Kemp's laboratory till I find the way back. There is a way back, Flora! And then I shall come to you. I shall offer my secret to the world, with all its terrible power! The nations of the world will bid for it - thousands, millions! The nation that wins my secret can sweep the world with invisible armies!"

"Put a warm rug in the car. It's cold outside when you have to go about naked."

"I must have a partner, Kemp. A visible partner, to help me in the little things. You're my partner, Kemp. We'll begin with a reign of terror. A few murders here and there. Murders of great men, murders of little men, just to show we make no distinction. We might even wreck a train or two - just these fingers around the signalman's throat, that's all..."

"Shoichi Hirose — King Kong"