Director James Cameron’s acclaimed sci-fi movie Aliens turns 40 in August. It’s a sequel to Ridley Scott’s claustrophobic breakout hit Alien, made in 1979. Where the original featured one terrifying ...

For a long time, aliens in movies had something reassuringly familiar about them. Even when they arrived from distant galaxies, they tended to stand upright, speak (or at least gesture) like us, and ...