Roger Corman's second Alien knock-off is an exploitation dream of blood, babes and xenomorph-looking creatures.

The best video game adaptation ever made? Resident Evil is daft zombie spills for teenage boys.

Robots invade the Earth in 60s British sci-fi. I remember this one vividly from my childhood!

Dracula in Space! Replace the xenomorph with a bloke dressed up in Victorian garb and you get the idea of how bad this will be.

Low budget Alien knock-off ticks all of the relevant boxes that low budget 80s sci-fi horror should - gore, boobs and cardboard sets.

Sequel with Professor Quatermass uncovering an alien conspiracy which could end the world. Top quality sci-fi from the 50s.

Radioactive blob-like monster from the centre of the Earth makes its way to the surface to terrorise a Scottish community.

Invisible brain-slurping monsters created in a thought control experiment are unleashed upon an unsuspecting town.

Landmark sci-fi horror from Hammer about the survivor of a space exploration mission and the 'present' he brings back to Earth.