Steven Spielberg’s fourth film about alien encounters is “Disclosure Day,” following “ET: The Extra-Terrestrial,” “War of the Worlds,” and “Close Encounters of the Third Kind.” That inspired us to take another look at what Roger Ebert thought about some of the most famous and infamous alien movies,

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 films you must watch! From paranoid classics to pulse-pounding blockbusters,

Watch the Alien franchise in order with our comprehensive list, from the 1979 original to Alien: Earth, and including the Alien vs. Predator crossovers. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.