This year’s festival has seen science fiction movies screened made in the 50s right the way through to the present day. We’ve seen aliens crashing to earth in meteorites, man-made spaceships travelling to other dimensions, humans being frozen to travel vast distances and mysterious life-forms living on even more mysterious planets. It’s easy to write all that off as pure science fiction, but a lot of what we see in the films isn’t as fantastical as it first sounds. In this special presentation, Professor Andrew Evans attempts to take some of the widest used conventions of science fiction and separates the fact from the fiction: from the reality of space travel through to the very real possibilities of alien life actually existing.