ALIEN VS PREDATOR (15)

A GROUP of explorers hired by Lance Henriksen venture in to the depths of a sunken pyramid in the snowy northern wastes.

Unfortunately, the subterranean structure is a sacrificial chamber, home to the dreaded aliens, and soon face-huggers are flying through the air, impregnating a number of the expedition, thereby giving birth to the acid-blooded aliens.

The few who survive seek refuge in the pyramid, the walls of which move every 10 minutes, like some deadly giant puzzle box.

However, finding a safe path out of the structure is the least of the group's worries - three predators, on Earth to hunt the aliens as part of a bloodthirsty rites-of-passage, are also underground.

They must kill all of the aliens to attain warrior status and these skilled hunters will not let a few pesky humans stand in their path to glory.

Special effects and make-up are excellent and the ambiguous if cheesy ending leaves the airlock ever so slightly ajar for a rematch.