Tierra desconocida

A military mapping operation goes awry and lands a helicopter in a hidden volcanic crater with live dinosaurs.

This movie oozes potential. A reasonable script, decent actors, good pacing, spectacular sets, and the grandeur of CinemaScope. Then you see the dinosaurs.... oh lord, do you ever. One can easily see where their budget ran dry. The movie employs the two worst methods of portraying dinosaurs, and doesn't even do it well. However, the compositing is nearly seamless, so if it were possible, one could become convinced that the producers managed to find a 20 foot tall man to wear a full size Tyrannosaurus costume.

Aside from the special effects, the movie is quite good, nearly rising above B-movie status. The actors all seem for the most part, naturalistic. They all seem to find the line between flat and hammy. The movie never wastes much time on non-essential plot elements, and the running time works out quite well.

Recommanded for those who love the genre type, be it dinosaurs or jungle movies.

I first remember seeing 'The Land Unknown' as a kid. It really left a big impression on me and I never forgot that movie. Since that time, I've seen it a few more times, most recently just the other day. Although the special effects, prehistoric dinosaurs and scenery are not up to today's standards, it is still an excellent movie. I believe this film is very under rated and 'The Land Unknown' should be considered as a classic lost land movie of the 50s. If you are a fan of horror/sci-fi movies of the 50s and early 60s, this is a must see movie. There are flaws in this movie but that's how it was back then. The movie has to be watched keeping in mind the context of the times it was shown. You will still find a very enjoyable, exciting, action, sci-fi movie. If you are caught up in the high tech, high budget movies of today, and looking for a flawless film, this might not be for you. This is a fine film, tucked away, waiting to take it's rightful place in the history of cinema. Watch it if you can. You'll be glad you did.

Today's kids, raised on computer-generated graphics, will probably sneer at it, but by 1957 standards THE LAND UNKNOWN was pretty hard to beat. Drawing inspiration from 1920s silent classic THE LOST WORLD and using film shot by Byrd during his polar expedition, THE LAND UNKNOWN presents the story of a helicopter forced down at a warm-water oasis in Antartica--where the crew discovers a prehistoric world where everything seems determined to gobble them up.

The special effects are a mixed bag, ranging from live-action shots of lizards-in-combat to Godzilla-style rubber suits to full size mechanics. While I wouldn't describe it as greatly sophisticated or even consistently executed, it is all a tremendous amount of fun. The script is more intelligent than you might expect--and the story takes an unexpected turn that tempers the action-heavy plot with a certain depth. The cast is no-name, but every one plays expertly, and THE LAND UNKNOWN moves at a cracking pace. This will never compete with the likes of Harryhausen's stop-motion classics, nor will it go down in the history of film as an equal to the truly great science-fiction and fantasy films of its day. But THE LAND UNKNOWN is a fun flick, and I recommend it to fans of 1950s creature features.

Gary F. Taylor, aka GFT Amazon Reviewer

This film is a very good entry in the late '50s sci-fi cycle, about a group of explorers and scientists who discover a lost tropical world below sea level in Antarctica (!) Reynolds (the pilot), Mahoney (the scientist), Smith, and Harvey crash-land and encounter dinosaurs and a survivor from an earlier expedition (Brandon). Great (although obviously indoor) sets, literate script, and good acting are the pluses. The dinosaurs are pretty shaky, especially the Tyrannosaurus (a guy walking around inside a dinosaur suit).

Mahoney seems a little miscast, but Brandon steals the show as the loner...his acting actually conveys the feeling that he's been stuck here alone for years. This is a very good B+/A- sci-fi film that should better known than it is.

This rip-roaring sci-fi adventure scores high marks in several categories. The story concerns four people whose helicopter lands in an unknown prehistoric valley, a freak temperate zone located thousands of feet below sea level in the Antarctic, kept warm by volcanically-heated water and a permanent cloud layer that traps the warm air.

The special effects are by Universal's FX wizard Clifford Stine, and even though the dinosaurs are not animated, they aren't badly done. The Tyrannosaurus Rex is a man in a suit, the flippered dinosaur is fairly convincing puppet, and the rest are enlarged lizards. All the dinosaurs are skillfully integrated with live action shots.

Stine loaded the film with wonderful scenes of the fog-shrouded prehistoric landscape, using marvelous matt shots and impressive sets, creating a Skull Island atmosphere.

In some ways, this is the perfect 1950's sci-fi film, because it proudly presents a wealth of facts about the Antarctic before it begins its fanciful story.

The music by Joseph Gershenson is extremely effective. Director Virgil Vogel ("The Mole People") keeps the action moving right along. Hero Jock Mahoney (who later played Tarzan) is a stalwart hero, and Shawn Smith (the stern lady astronaut in "It! The Terror from Beyond Space" and the luscious babe in a mini-skirt in "World Without End") makes a gorgeous heroine. Henry Brandon does a commendable job as a half-crazed survivor from a previous expedition -- and I read somewhere that he was actually a member of the 1947 Bird Expedition to the North Pole. Don't remember where I read it, so I might be misinformed.