Steven Spielberg wanted to make Disclosure Day as a "summation" of all his sci-fi films.
The iconic director's latest blockbuster is out now, and follows a long history of his own sci-fi movies, including the likes of 1977's Close Encounters of the Third Kind, 1982 classic E.T. the Extra-Terrestrial, and 2005's War of the Worlds.
He told Entertainment Weekly: "I'm telling the story about an area of interest that I have never been able to divest myself of.
"It has been too compelling for me, and has kept me thinking about what's out there, what's been out there, and how come we've not been told it's out there.
"And I wanted to finally make this movie, in a way, as a summation film for all the sci-fi films I've made, starting with Firelight when I was 17 years old on 8mm film - about the truth about are we alone, or are we not alone?"
