“If this truth were just known overnight, that would mess up a lot of people,” says Spielberg about the impact of disclosing alien life.

The moment of first contact with extraterrestrials is a staple of science fiction. It usually involves a frantic scientist having a Eureka moment, realising in a single dramatic instant that Earth is being visited by creatures from light-years away.

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,

You've seen the famous aliens, planets and scientists, but now it's time to venture even farther into the depths of space.

Exclusive: What makes a great science fiction movie? Prof. Lisa Yaszek dives into the commonalities among iconic sci-fi movies across the decades.

Two different ways to tell the same story. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Science fiction is not monolithic. There are, in fact, two major sub-genres that divide sci-fi — hard sci ...