Alien, Sunday 1 July, 11.20pm, Channel 4/HD (CH 104/141)

From swashbuckling intergalactic adventures to multi-layered brain ticklers and extraterrestrial terror, science-fiction films have tickled cinema’s fancy for decades. At the cutting edge of thrills, narrative innovation and special effect, it’s a cinematic category that has thrown up classic after classic, regularly redefining the genre – and occasionally the world of film itself.

To celebrate cinema’s most star-studded genre (get it? star? as in… never mind), we’ve assembled an all-time top ten that we think represensents sci-fi’s very best. It’s a real doozy of a list, so have a read and vote for your favourite below!