Very very predictable, including the post credit scene !!!

Absolutely brilliant

A film with more than the usual spoiler issues. Talking about it in any detail feels akin to handing you a gift-wrapped present and saying, "I hope you like it -- It's a thriller about a diabolical secret experiment."

One of the worst ways to make a cult movie is to set out to make a cult movie.

Dull outing about a group of scientists and a financier embarking on a journey to find a refuge to escape what they have determined to be near certain nuclear holocaust by drilling into the earth. Reminiscent of "At The Earth's Core", this has none of the charm of that movie. Instead it focuses on a lot of pseudo scientific mumbo jumbo. The group goes down in a special vehicle called a Cyclotram but it doesn't do much. Much of the movie appears to be shot in a cave. There is the requisite conflict between the financier and one of the scientist. Nothing happens in this. Bad waste of time.

There are various versions of this sci-fi wannabe floating around, stating it runs anywhere from 64 to 73 minutes--whatever the showing time, it's far too long, for most of the running time you gasp for air! There are essentially two sets--the Carlsbad Caverns (or as a stand-in, some caverns near Griffith Park in Los Angeles) and the interior of some contraption called the Cyclotram, sort of a large dumpster with controls and four leatherette office chairs with straps. Plot: Scientists have decided to burrow to the center of the Earth to avoid the predicted oncoming Atomic Holocaust.The titles on the print from one purveyor are jumpy and miss listing the only female in the cast--and one who has an interesting back-story: Marilyn Nash was supposedly discovered by Charlie Chaplin while playing tennis in Hollywood, and he signed her to a contract to play "The Girl" in Monsieur Verdoux; her contract was for five years, in which time Chaplin made no further films in the U.S. Miss Nash's Tinseltown buzz faded quickly and years later she tried to make a "comeback" with this Lippert Films release. Too late. It's pretty dull stuff, if not excruciating, and not even mild camp, unless you are starved for an underground adventure with few thrills, deadly dialogue, and forgotten actors.

First Incredible Petrified World (See my review), and now Unknown World. It's safe to say that after watching both of these flicks, not a whole lot happens under the earth's crust. After about 6 or 7 tries and a couple chapter skips I was finally able to make it through this movie. There are a few scientists who are members of the Society To Save Mankind (or something similar) that invent a machine to go 1,000 miles into the earths interior to escape the inevitable doomsday brought on by nuclear weapons.First off there is a corkscrew on the front of this machine, one would assume for boring into the earth, however, the corkscrew is about 1/8 the size of the rest of the vehicle behind it, so other than making neat little holes here and there, I dunno what good it would do someone trying to bore through the earth. As luck would have it, there is pretty much a 1,000 mile flat road from the surface of the earth down. Seems it's inside an inactive volcano. (Why these folks didn't just take a pickup truck instead of a vehicle that goes like 3 miles an hour, I dunno) So the scientists and a young chiseled chinned rich boy who funded the mission for his own kicks, start their slow decent.The majority of the movie shows the vehicle driving on a downward slope at an extremely slow rate. Kinda like the movie. Every now and again something very exciting happens, like the group gets thirsty and don't have water and has to find some. Other exciting bits include climbing down a rock. I don't want to give away the ending, but the CORE looks a lot like the surface, except you can't procreate down there for some reason, so every decides to head back up. I think the moral was the grass isn't always greener? Or maybe it's that doesn't matter what we do now that we have nuclear weapons we're all screwed.I would recommend this movie if you are suffering from insomnia. It put me to sleep within 10 minutes more than once and is prefect for those nights when you just can't seem to get any sleep. Zzzzzz

What should have been an interesting trip ends up as a rather dreary and none too exciting (despite filming in New Mexico's famed Carlsbad Caverns) slice of modest sci-fi. The main problem is not the cheap special effects (some are actually not too bad at all), but the characters. Without exception, they are a most unengaging lot. The heroine and Mr Kellogg are the only players that connect at all, though Miss Nash is often unflatteringly photographed and Mr Kellogg tends to out-stay his welcome. Otto Waldis, as usual, tries to hog the camera, managing to deduct at least two points from the film's appeal in the process. The other players just don't register at all. Blame Millard Kaufman's lackluster screenplay. This is certainly no Raintree County, let alone Bad Day at Black Rock.Despite his second-string cast, Terry Morse's direction manages two or three moments of real effectiveness, but in a 74-minute movie, that's far from an acceptable figure.