The Brain Leeches (1978)

Two years into an intergalactic invasion of Earth, survivors in Sydney, Australia, fight back in a desperate ground war. As casualties mount by the day, the resistance and their unexpected allies, uncover a plot that could see the war come to a decisive end. With the Alien invaders hell-bent on making earth their new home, the race is on to save mankind.

A story of broken humanity following the invasion of a technologically superior alien species. Bleak, harrowing, and unrelenting, the humans must find enough courage to go on fighting.

The two remaining crew members of a mining operation in the Arctic Circle fight to survive against an alien creature.

On Saint Patrick's day—a night of wild parties and drunken revelry—three unlikely friends band together to save a college town from a vicious horde of body-snatching aliens.

A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.

16-year-old Cassie Sullivan tries to survive in a world devastated by the waves of an alien invasion that has already decimated the population and knocked mankind back to the Stone Age.

While scavenging the deep ends of a derelict space station, a group of young space colonizers come face to face with the most terrifying life form in the universe.

The residents of San Francisco are becoming drone-like shadows of their former selves, and as the phenomenon spreads, two Department of Health workers uncover the horrifying truth.

A lone drifter stumbles upon a unique pair of sunglasses that reveal aliens are systematically gaining control of the Earth by masquerading as humans and lulling the public into submission.

Residents in a lonely gulch of inland California bear witness to an uncanny, chilling discovery.