lose world type plot of an expedition to a section of the antarctic where there a body of warm water . the team member run into inclement weather not to mention a fly menace that force them to land . where they land be a few thousand foot below sea level where time be stick back in the mesozoic era . dinosaur be a persistent problem and not to mention a severely traumatize survivor ( henry brandon ) of a previous expedition . lay aside a lack of originality and and a budget too low to allow for more convincing special effect and the land unknown be still fairly good entertainment . it get a good look ( and one very good look female co star in shirley patterson and who get to dress somewhat skimpily for a fair portion of the running time ) while the set be well do . it make with some skill while director virgil vogel be also at the helm of other fantastical film from the era such a the mole people and terror in the midnight sun . he deliver some enjoyable thrill and keep thing move steadily along and bring the film in at a tight n trim run time of 79 minute . future tarzan performer jock mahoney adhere to the tradition of rugged and stoic hero from other sci fi film of the era and with able support from william reynolds and douglas kennedy and and phil harvey . brandon be a stand out a the crazed hunter who try to run thing his way but be still reachable and it nice to see him regain some humanity by the conclusion of the film . the land unknown stand out from other universal 50 sci fi effort for be shoot in cinemascope . this allow for a feeling of grandeur even if it essentially b level material . vogel certainly know how to fill the wide than usual picture . it may not be destine to be one of the classic of the period and but it still fun of it type . positive .