Some guys are going to the "warm water" region of Antarctica and decide to take a woman because that makes sense. They fly into a storm and while trying to land they somehow go thousands of feet below sea level.Did they enter a hole in the earth?We never find out. They land in a jungle and immediately call it "prehistoric" because they see 2 iguanas fighting.They spend a lot of time talking about what "existed in this time period" even though they are in the present day.They know everything about the prehistoric monsters but they find a lemur and act like it's from another planet. Of course there's another guy there and wouldn't you know it, he was flying the same kind of helicopter and may have spare parts. Despite all of this garbage, it's not bad for this type of movie.It has the best guy in a T-Rex costume that I have ever seen.Definitely worth watching.

When I was young, on rare occasions my father would allow me stay up on Saturday nights and watch a program called creature feature. It was my first exposure to Hammer horror classics like Frankenstein and the wolf man. However, my favorite of all of these were the dinosaur movies. This movie is a throw back to that time. Yes, it is black and white. Yes, the science in the science fiction is outdated and not accurate. However, in that time period, things like craters in Antarctica with tropical weather and environments lost in time were perfectly legitimate ideas. As were, martians, landing on Jupiter, and atomic mutations. This movie is perfect for those that grew up on these types of movies or enjoy a classic sci-fi lost in time late night creature feature. I suppose I like the film so much because it brings back those childhood memories of staying up late and watching black and white horror movies. The special effects were probably high tech for the fifties. Yet, they seem to look a bit more authentic than some of the CGI products currently on the market. Yet, it simply has a feel and ambiance that I enjoy. Again, I am sure it is because of the memories it brings back when I watch it. It is not the best of late night B cinema from the fifties. But it still captivates and holds your attention if you want to revert to a young lad with a vivid imagination glued to a TV on a Saturday night. 

Virgil Vogel directed this science fiction yarn about a Naval expedition in the Antarctic(led by Jock Mahoney, William Reynolds, and Phil Harvey) along with a female reporter(played by Shirley Patterson) who land in a crater well below sea level that contains a prehistoric world containing dinosaurs(both on land and in the sea) as well as carnivorous plants and a deranged sole survivor(Dr. Hunter) of a previous expedition. Can they repair their helicopter in time to rendezvous with their ship, before they are stranded in this lethal land? Marginal film has good story but clichéd treatment and characters. Some model F/X are poor(the T-Rex) while others aren't bad at all(the sea dinosaur). Watchable as a rainy-day diversion, but little more, though is an understandable cult item.

I guess this is one of the classics because scenes from this movie often appears at other places especially the really cheezy looking T Rex.The plot is somewhat based on the alleged story admiral Byrd told of after his Operation High Jump, that he saw vegetation growing, and seen a wooly mammoth beyond the pole. Few men and a woman decides to travel the same route, and finds a land that time's forgotten.I'm sorry to say, but that's about all that's going for this movie. Far from the quality of Willis O'Brien's King Kong, this movie has no quality to it at all. The actors are crappy, chic is ugly, and story is dismal.Don't waste your time on this fail of the century. You can find better things to do.