Searching for treasures , a scientific , his son (Peter Gilmore) and Greg Collinson (Doug McClure) are double-crossed by their crew (John Ratzenberger : Cheers , among others) . Then , they're into a diving bell when are attacked by a sea monster and the sailors are dragged by a giant octopus . Later on , the ship-wrecked crew find inhabitants of the lost world of Atlantis , the lost continent written by Platon . It's governed by an alien race (Michael Gothard , Daniel Massey and Cyd Charisse) from Mars which wish to rule the human beings and the creation a totalitarian state . An incredible tale of terror and suspense...above and below the sea. From the depth of space they came to vanish beneath the sea...
This fantasy picture packs thrills , action , weird monsters , lively pace and fantastic scenarios . The monsters are the real stars of this production and its chief attribute . The tale is silly and laughable but the effects and action are quite well . Among the most spectacular of its visuals there are deeply shrouded caverns filled with monsters roaring menacingly towards the camera , the attack of a giant lizard on a fortress , and the futuristic backgrounds of Atlantis . Some illogical parts in the plot are more than compensated for the excitement provided by Roger Dicken's monsters , though sometimes result to be a little bit cheesy . Filmed in glimmer and colorful cinematography by expert cameraman Alan Hume on location in Malta and Pinewood studios , England . Evocative and stirring musical score by Vickers . This is the fourth collaboration between producer John Dark and director Kevin Connor who also made in similar style : ¨The land that time forgot (1975)¨, ¨All the Earth's core (1976)¨, ¨The people that time forgot (1977)¨, mostly starred by Doug McClure and with the craftsman Roger Dicken as the monster-maker . The film will appeal to kiddies who swallow whole and sit convulsed in their armchair.