Steven Spielberg drops trailer for UFO thriller 'Disclosure Day' revealing humanity's first contact with aliens

Legendary director Steven Spielberg, the visionary behind 'E.T.' and 'Close Encounters of the Third Kind,' has returned to the big screen with his latest project, 'Disclosure Day.' 

The first trailer offers a tantalizing glimpse into a story that promises to shake the world with revelations about alien life, while keeping much of the plot shrouded in mystery.

The star-studded cast includes Emily Blunt, Josh O'Connor, Colin Firth, Colman Domingo, Eve Hewson and Wyatt Russell.

Clocking in at two minutes and seven seconds, the teaser opens with a haunting question: 'If you found out we weren't alone, if someone showed you, proved it to you, would that frighten you?'

Viewers are then thrust into Blunt's world, as she portrays a meteorologist abruptly seized by a mysterious extraterrestrial force during a live broadcast. 

O'Connor plays a determined man on a mission to reveal the truth about alien life to the world.

The trailer is packed with cryptic crop circles, high-speed chases, eerie creatures and chilling hints that humanity may not be alone in the universe.

Adding to the buzz, cryptic billboards appeared in Times Square and Los Angeles on December 10, bearing the message: 'All will be disclosed — Spielberg 06.12.26.'

This is a developing story... More updates to come 

Spielberg's fascination with UFOs and outer space began in childhood, when his father woke him one night to watch the Perseid meteor shower from a field near their home in Haddon Heights, New Jersey. 

That early wonder inspired his first amateur film project at just 17, a 1964 feature, length sci-fi movie called 'Firelight', which he screened at a local Phoenix theater for family and friends, charging $1 per ticket.'

That film seemed to set the director on path about the unknown, as hist 1977 'Close Encounters of the Third Kind' was released, followed by 'E.T' in 1982.

Both films were blockbuster hits, with ET becoming the highest-grossing film of all time for over a decade, surpassing Star Wars.

More recently, in 2005, Spielberg revamped the timeless 'War of the Worlds' that was one of that year's top films.

He has returned to his roots with 'Disclosure Day,' which was based on an his original story, but penned by r David Koepp, who helped write 'Jurassic Park,' 'Jurassic Park: The Lost World,' and 'War of the Worlds.'

'Just watched this chilling clip from Steven Spielberg's new UFO film Disclosure Day (trailer dropped [Tuesday])—Emily Blunt's weather forecast turns into straight-up ALIEN NOISES live on air, a UFO enthusiast posted on X.

'These eerie clicks and guttural sounds are TERRIFYING.' 

Another fan shared online: 'For a half-century, every new Steven Spielberg release has always felt like a must-see event. 

'Already looking forward to seeing 'Disclosure Day' next year -- and I love that Emily Blunt is playing a Kansas City TV meteorologist. Midwest meteorologists are the best!'

Mysterious movie posters for the film recently appeared under the bright lights of New York's Times Square, showing an eerie eye peering through the silhouette of a bird.

While the image sparked many questions, the trailer appears to answer at least one.

In the newly released clip, there is a shot of bizarrely behaving robins that flying into an apartment where Blunt and O'Connor are sitting.

One social media users posted on X about the billboard, saying: 'This billboard in Times Square is not just promoting another movie. 

'It is signaling the return of the filmmaker who reshaped the medium itself. Spielberg, the most influential director in the history of cinema, the man whose last name is a synonym for Hollywood, is about to debut his first original sci-fi story in years.'