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,

The best alien invasion movies feature the most exhilarating stories about extraterrestrial visitors, from War of the Worlds to Annihilation.

Add Yahoo as a preferred source to see more of our stories on Google. Some of the greatest sci-fi movies of all time revolve around humans in a desperate struggle for survival. Sometimes we’re fighting time-traveling robots or out-of-control plagues.

Aliens have been a subject of films for over a century, and they’ve grown into a beloved and oft-revisited trope in cinema during that time. Envisioned and executed by some of the greatest filmmakers of all time, the best of these movies take audiences ...