Back in the day before Sir John Hurt took to being little more than a highly paid cameo-man, he was a great actor and here is a prime example. His merchant ship is travelling through space when it receives a distress call. They stop to help and one of their number becomes infected with a... well, now you have to watch it. Sigourney Weaver is superb as the feisty, no-nonsense "Ripley" who leads the defence against a beastie that has brute strength, determination, intelligence and an astonishing ability to move at speed through the corridors and conduits of the ship. Ridley Scott allows the tens...