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 ...

World Domination, Hordes of Aliens, Ray Guns, Mind Control & Three Teenage Zombies!! The Earth is under attack by a horde of Alien Brain… uh…Thingys! Humans ...