60s sci fi

A group of young adults trapped on a desert island find the water inhabited by a violent form of flesh-eating organisms.

In Britain, a group of survivors fights off a deadly alien invasion that uses robots and a poisonous gas to take over the Earth.

While mainland Britain shivers in deepest winter, the northern island of Fara bakes in the nineties.

When a blood clot renders a scientist comatose, a submarine and its crew are shrunk and injected into his bloodstream in order to save him.

A Chinese general goes berserk and has a system of tunnels dug all the way from China to USA, under the Pacific Ocean. The man who has discovered this is locked up because they think he is insane. US Navy soldiers go underground to repel the invaders.

A group of scientists are kidnapped and taken into outer space aboard a saucer.

Mysterious woman marries government scientist Davidson despite his lack of knowledge about her past. His bosses are suspicious of her unusual traits. After it's clear she does love Davidson, the pair come under attack.

In 1661 Mexico, the Baron Vitelius of Astara is sentenced to be burned alive by the Holy Inquisition of Mexico for witchcraft, necromancy, and other crimes. As he dies, the Baron swears vengeance against the descendants of the Inquisitors. 300 years later, a comet which was passing overhead on the night of the Baron's execution returns to earth, bringing with it the Baron in the form of a horrible, brain-eating monster that terrorizes the Inquisitor's descendants.

An American agent is assigned to track down a renegade Soviet spy who is building an atomic device in Los Angeles and plans to destroy the city with it.

A young couple argue about having a child in the days after a global plague wipes out most of Earth's population.

An international team embarks on an expedition to the moon in an uncommonly spacious rocketship. There they encounter a faceless alien intelligence who conclude that the human race is too immature and dangerous and must be destroyed.