They're here'€”and they're not leaving without a fight. Join us as we count down our picks for the most epic alien invasion ...

Add Yahoo as a preferred source to see more of our stories on Google. Looking for the definitive ranking of the Alien movies? We've got you covered. It's been 46 years since Ridley Scott's original ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: FlixPix / Alamy ...