Steven Spielberg once again made a movie that focuses on aliens coming to Earth, so it's probably worth watching some other great alien invasion films.

With Steven Spielberg’s “Disclosure Day” due in theaters this week, we give props to the best space invasion movies of all time.

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 ...