See how science fiction has influenced scientific discovery through a new exhibition at the British Library.
Out of this World, which opens today, journeys through five themes - including alien and parallel worlds - that have provoked hopes, exhilaration and fear in science fiction fans through the centuries.
The exhibition is free, open seven days a week and runs from Friday 20 May until Sunday 25 September 2011.
Out of this World at the British Library
British Library exhibitions
See more films about the exhibition on the British Library YouTube channel.