Ten years after Denis Villeneuve’s mind-bending sci-fi hit, EW breaks down the aliens’ true purpose, the mystery of Amy Adams ...

Aliens have long been a staple of science fiction. Yet the possibility of intelligent life beyond Earth is more than a matter of imagination—it is also a subject of serious scientific inquiry.

Disclosure Day builds toward one huge question: should humanity finally learn that aliens are real? By the end of the film, that secret can no longer be hidden, as Margaret Fairchild and Daniel risk ...