"SEE! Daring climb to a strange prehistoric world! SEE! Violent upheaval of a prehistoric earthquake! SEE! Breath-taking escape as an entire island explodes!"

"Thrills of the atomic-powered future! Adventures of the prehistoric past!"

"ZOOM...at atomic-powered speed to a NEW land of fantastic adventure!"

"They Lived...180,000,000 Years in Seven Days!"

"Cesar Romero — Maj. Joe Nolan"

"Modern Man Against Prehistoric Monster!"

"Eduardo Noriega — Enrique Rios"

"Julio Villarreal — Don Pedro"

"Carlos Rivas — Felipe Sanchez"

"Monsters in a land that time forgot!"

"ASTOUNDING - INCREDIBLE - AMAZING!"

"Hillary Brooke — Marla Stevens"

"Patricia Medina — Sarita"

"Oh, I make it a rule never to be offended at a pretty girl."

"Don Pedro: Well, maybe that's your answer. That swamp is a very mysterious and sinister place."

"Start thinking with your head instead of your gun."

"One Day After A Million Years It Came Out Of Hiding To... Kill! Kill! Kill!"

"Sandra Knight — Trudy Morton"

"Donald Murphy — Oliver Frankenstein/Frank"

"A HORROR BEYOND BELIEF...BREATHING HATE, DEATH AND DESTRUCTION!"

"Sally Todd — Suzie Lawler"

"You've always treated me as a monster, Trudy. Now you're going to be one."

"It reaches from the grave to re-live the horror, the terror! More destructive! More terrifying!"

"John Ashley — Johnny Bruder"

"And introducing the new REGISCOPE Process"

"Guy Madison — Jimmy Ryan"

"Tom Conway — Dr. Viet"

"Barbara Payton — Dina Van Gelder"

"Raymond Burr — Barney Chavez"

"Lon Chaney Jr. — Police Commissioner Taro"

"Police Commissioner Taro: This is Jungle - lush, green, alive with incredible growth - as young as day, as old as time. I, Taro, Police Commissioner of Itman County, which borders the Amazonas River, know it as well as any man will ever know it. Isn't it beautiful? But I have also learned that beauty can be venomous, deadly, something terrifying, something of prehistoric ages when monstrous superstitions ruled the minds of men, something that has haunted the world for millions of years rose out of that verdant labyrinth. Let me tell you how the jungle itself took the law into its own hands. This was Van Gelder Manor, built to stand against the searing sun, built to shelter generations of Van Gelders, it also has become prey to the powers of the jungle, that terrifying strength that arose to punish a man for his crimes."

"Dr. Viet: White people shouldn't live too long in the jungle. Brings out their bad side, their jealousies and impatience."

"A Blonde Beauty and a Savage Beast... alone in the Jungle!"

"Her marriage vows were more than fulfilled!"

"Her clothes torn away, screaming in terror!"

"Helen Westcott — Vicky Edwards"

"Lou Costello — Tubby"

"Boris Karloff — Dr. Henry Jekyll / Mr. Edward Hyde"

"Craig Stevens — Bruce Adams"

"How do you like that Dr. Jekyll! He turned me into a mouse... THE RAT!"

"The Laughs Are Twice as MONSTER-OUS as Ever Before!"

"Than Wyenn — Frank Johnson"