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.

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.

This is a Universal low, low budget sci-fi movie modeled after "The Lost World".

Naval classes are being held before the next expedition to the South Pole. Harold Alan Roberts (Mahoney) will be in command, and reporter Margaret Hathaway (Smith) will be tagging along with two other crew members. They reach the South Pole, but then their helicopter crashes into a subterranean valley, still tropical in climate, with dinosaurs from the Mesozoic Era (according to the film). It follows a predictable path from here. The acting varies from boringly bad (Mahoney) to amusingly bad (Smith).

The movie is full of mistakes. Watch for:

The blown takes that made it into the finished film. Apparently the actors forgetting what mode of transportation they used wasn't deemed important enough to reshoot or the goofs weren't noticed.

There is also the giant iguana's costumes being ripped in their initial fight, the zipper running down the Tyrannosaurus Rex's costume, brooms disguised as oars, and the tiny set disguised as a forest, complete with lagoon. But without all of these mistakes this film would just be a bore.

Long before I ever knew about the existence of "The Land Unknown", I had already seen clips of its legendary T-Rex in various TV-shows spoofing bad movies and even wannabe funny commercials promoting the strength of cornflakes. It was like THE archetypal bad 'man-in-a-suit' monster that supposedly had to look ferocious but actually couldn't even fright the smallest child. Granted, the T-Rex looks ludicrous and pitiful, but bear in mind the movie remains a product of the 1950's and – in fact – the T-Rex is the only truly weak element in an overall decent and spirited little Sci-Fi effort. "The Land Unknown" also boosts an adequate screenplay, solid performances and direction and a couple of other and far more successful monster designs, including a Pterodactyl and some kind of Dino living underwater. Heck, the imaginative photography even manages to make smaller and "harmless" animals like iguanas and lizards look menacing. The story revolves on a scientific expedition heading for the continent of Antarctica to investigate why it could possibly have warm-watered seas and lakes amidst all the mountains of ice. A four-headed crew, one woman and three men, become trapped in a sudden storm and their helicopter lowers down a crater, far out of reach of all the headquarters' radars and search parties. For nearly 30 days, they are stuck in a subtropical landscape far below sea level and – even more astonishingly – where times didn't evolve and dinosaurs still prowl around. As paranoia amongst them rises and the hope for rescue lingers, the team faces the biggest ordeals in their lives. Okay, so "The Land Unknown" is rather tacky and often tedious, but it's undeniably charming and the opening quarter is even somewhat educational, with actual footage of the historically fundamental Admiral Byrd expeditions. The footage inside the crater and amongst the dinosaurs is obviously very grotesque and implausible, but hey, so was "Jurassic Park" and yet everybody loved that. Worth watching, but probably not for nowadays Sci-fi target audiences.

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.