Frightened but intrigued by aliens? Why’s that? Are they a new threat from another world or have we simply given our oldest and darkest fears and desires a make-over? Come and meet the science fiction classics, from bodysnatchers and bogeymen to the biggest baddies on the screen. But be careful...they bite!

See: a full-size model of the killer queen from Alien
Watch: film clips showing scary moments from movies such as Predator, Alien and Invasion of the Body Snatchers
Find out: how some aliens resemble the dragons and demons of popular mythology