The Land That Time Forgot begins as a First World War escape story and then changes scale when a captured German submarine carries its uneasy British and German crews through an undersea passage into Caprona, a hidden land where prehistoric animals still live. The shift from naval adventure to pulp fantasy is the film’s central pleasure. The submarine gives the characters a narrow, mechanical refuge; Caprona opens the frame to jungles, cliffs, strange human societies and creatures from different geological ages.
The film is often catalogued as a 1974 production because filming began that year, while the American Film Institute records its theatrical release in 1975. Kevin Connor directed the Amicus production, with Doug McClure as Bowen Tyler, John McEnery as the German captain von Schoenvorts and Susan Penhaligon as biologist Lisa Clayton. Its story adapts Edgar Rice Burroughs’s 1918 novel, first published in serial form, but the screen version compresses the book and gives its wartime submarine premise a stronger role. The novel itself belongs in the dinosaur books catalogue.
A war story becomes a lost-world expedition
Tyler and Lisa survive the sinking of a passenger ship and find themselves aboard a German U-boat. Control of the submarine changes hands as the crew argues over where to go and whether former enemies can cooperate. The vessel is pushed off course, past ice and into waters no chart explains. A warm current and a tunnel beneath the island lead the crew into Caprona, whose interior appears to preserve a sequence of life rather than one single prehistoric moment.
The film’s first act establishes the practical stakes that keep the fantasy grounded. The survivors need water, food and fuel. They cannot simply leave the submarine behind, and they have little reason to trust one another. The arrival of dinosaurs makes those needs more urgent: hunting might feed the group, but a large animal can turn a supply trip into a fight for survival. Lisa’s scientific curiosity also differs from Tyler’s military habit of treating each obstacle as a threat to be overcome by force.
Caprona is not presented as a realistic ecosystem. Creatures from different periods appear together, while the island’s human inhabitants are arranged along a speculative ladder of development. These are pulp-fiction ideas inherited from the lost-world tradition, not claims about evolution or the past. The film is most coherent when the island is read as a storybook environment whose rules the characters must discover, rather than as a scientific reconstruction.
Practical creatures and theatrical scale
Amicus built the adventure around physical locations and effects that could be staged for a modest production. Shepperton Studios supplied large water tanks for submarine sequences, while the prehistoric setting uses miniatures, creature models, puppets, costumes and landscape photography. The dinosaurs do not move with the seamless weight of later computer imagery. Their appeal comes from how clearly the film places them in relation to the actors: a head turns into frame, a shape crosses the landscape, and a sudden attack changes the scene’s rhythm.
Special-effects artist Roger Dicken supervised the dinosaur sequences, and the film mixes techniques rather than relying on one method. A full creature suit, a smaller model or a close puppet can each suggest a different scale. The edits invite the audience to join those pieces into one animal. This sometimes produces visible changes in texture or movement, but it also gives the creatures a handcrafted presence that distinguishes the film from later digital versions of the lost-world adventure.
The design uses familiar screen shorthand: horned herbivores, long-necked giants, predatory theropods and flying reptiles. Their labels and behaviour are not always precise, and the island deliberately ignores the separation of species by time. For viewers interested in real animals, it helps to keep the fantasy on screen apart from the fossil record. Dinosaurs and pterosaurs were distinct groups, even when adventure films place them side by side.
Performances, conflict and the limits of the adaptation
McClure gives Tyler the confident energy of a traditional adventure hero, while McEnery’s captain keeps the captured submarine from becoming a simple tale of good crew versus bad crew. Their temporary cooperation is uneasy and can break whenever resources or authority are at stake. Penhaligon’s Lisa is more than a passenger in the story: her knowledge helps the group interpret the island, and her choices affect what the crew does next. The supporting sailors give the expedition a sense of a group under strain rather than a trio travelling through empty scenery.
The film condenses Burroughs’s novel and simplifies some of its ideas. It keeps the journey to Caprona, the submarine and the hidden world, then gives the expedition a more direct sequence of hazards. That makes the plot easy to follow, but the book’s elaborate geography and social speculation are reduced. The ending treats discovery as a danger that cannot be solved by simply returning to the surface. For another screen story that combines Western imagery with prehistoric creatures and handmade effects, compare The Valley of Gwangi.
Who may enjoy it now
This is a good choice for viewers who enjoy older adventure films, practical creature effects and stories that move from one genre into another. The submarine material offers suspense and rivalry; the island sequences provide the promised dinosaurs and strange landscapes. The pacing is deliberate by modern standards, and some creature shots make their studio methods easy to see. Those qualities are part of the film’s period style rather than reasons to expect contemporary visual realism.
The film also makes a useful companion to the wider dinosaur movies catalogue. Its central idea is not that dinosaurs survived in a hidden place according to scientific possibility, but that a remote landscape can loosen the ordinary rules of an adventure story. Seen on those terms, the shift from U-boat conflict to prehistoric spectacle remains the film’s strongest feature.
Frequently asked questions
Was The Land That Time Forgot released in 1974 or 1975?
Filming began in 1974, which explains the production-year label used in some catalogues. The American Film Institute records the film's theatrical release in 1975.
Who directed The Land That Time Forgot?
Kevin Connor directed the Amicus production. Doug McClure stars as Bowen Tyler, with John McEnery as Captain von Schoenvorts and Susan Penhaligon as Lisa Clayton.
Is the film based on a book?
Yes. It adapts Edgar Rice Burroughs's 1918 novel, which first appeared in serial form. The film changes and condenses the source story.
Are the dinosaurs shown as a real ecosystem?
No. Caprona is a pulp-fiction lost world where animals from different geological periods appear together. It is a fantasy setting rather than a scientific reconstruction.

