The first trailer for Steven Spielberg’s mysterious UFO movie has now provided more details on what audiences can expect.

Disclosure Day, written by Jurassic Park’s David Koepp based on a Spielberg story, sees a starry cast deal with the discovery of aliens. “Why would he make such a vast universe yet save it only for us?’” Elizabeth Marvel’s character says at the end of the teaser.

The film stars Emily Blunt, Josh O’Connor, Colin Firth, Colman Domingo, Eve Hewson and Wyatt Russell. “People have a right to know the truth, it belongs to 7 billion people,” O’Connor’s character says.

It marks Spielberg’s first film since 2022’s semi-autobiographical drama The Fabelmans, which gained seven Oscar nominations. It also returns him to the world of aliens, previously explored in films such as War of the Worlds, ET and Close Encounters of the Third Kind.

“It’s like old-school Spielberg,” O’Connor recently said in an interview. “I think people will be excited.”

Earlier this year, Koepp called the film “a very emotional experience”.

“I finished reading the script and I bawled,” Domingo said earlier this year. “I thought it was one of the most beautiful scripts about our humanity. I think it was just the most beautiful film about our humanity, and I literally cried because Steven Spielberg believes in the possibility of the human beings we could be..”

The marketing campaign has coincided with the success of hit documentary The Age of Disclosure which alleged a government cover-up over the existence of alien life. It recently broke a record to become the most-rented documentary in its first 48 hours of release on Amazon Prime Video.

Billboards have recently cropped up in Times Square for the movie and the trailer will play before the latest Avatar movie this month.

Disclosure Day will be out in cinemas in the summer of 2026, a season that will also see the release of blockbusters including Toy Story 5, Christopher Nolan’s The Odyssey, Minions 3, Supergirl, a live-action Moana and He-Man: Masters of the Universe.