Back when he was just a teenager, Steven Spielberg made a feature-length movie that addressed some of the themes he's still exploring today.

It's an invigorating chase thriller, but where Spielberg once seemed to be leading the culture, he's now following decades of lore and mythology.

As a child, Steven Spielberg stared at a meteor shower and began his love affair with the sky. The director of the 1977 classic "Close Encounters of the Third Kind" returns with "Disclosure Day," which imagines closely-held secrets surrounding alien visitations.

From declassified footage to eyewitness testimonies, here are 10 must-watch UFO documentaries to prepare for Steven Spielberg’s Disclosure Day.

With Steven Spielberg’s new extraterrestrial film Disclosure Day just out, it’s the ideal time to watch Close Encounter of the Third Kind – perhaps the perfect UFO film, says film columnist Bethan Ack

Despite some rumors, Disclosure Day is not a secret sequel to Steven Spielberg's Close Encounters. But it does have a surprising connection to that film.