It's a big universe out there, and while we're all for exploring it, a specific subgenre of science fiction movies has hinted that it might be a bad idea. Alien invasion movies have come in droves ...

David Bowie as Thomas Jerome Newton in 'The Man Who Fell to Earth'; a Xenomorph in 'Aliens'; Scarlett Johansson as the Female in 'Under the Skin' A casual viewer might assume that if you've seen one ...