Glass Movie Samuel L. Jackson
Glass Movie Samuel L. JacksonGlass Movie/Facebook

After weeks of capturing fans' attention with teasers and mysterious posters, writer-director M Night Shyamalan has finally released the first trailer for his upcoming horror-thriller, Glass.

Shyamalan unveiled the gripping first trailer of Glass featuring James McAvoy, Samuel L. Jackson, and Bruce Willis at the ongoing San Diego Comic-Con. From the looks of it, the last installment in the Unbreakable movie series is expected to be a roller-coaster ride for the viewers.

The trailer opens up by showing the three characters from the previous two films in the series. Jackson and Willis from Unbreakable and McAvoy from 2016 release Split. All three are shown in a psychiatric ward under the care of Dr. Ellie Staple (Sarah Paulson), as earlier shown in the poster, receiving the treatment because they all believe they are superheroes in a human body.

In Glass, McAvoy's character possesses multiple personalities - 21 to be exact - and will come out as The Beast. Die Hard movie star Willis portrays a security guard David Dunn, who has special abilities. Whereas Samuel Jackson portrays the role of Mr Glass in the film. His real name is Elijah Price, a comic book fan who has dreadful secrets hidden behind those calm eyes.

The film's synopsis hints that the movie will depict how Mr Glass's special secrets will affect both David Dunn and Kevin Wendell Crumb aka The Beast.

Following the conclusion of Split, Glass finds Dunn pursuing Crumb's superhuman figure of The Beast in a series of escalating encounters, while the shadowy presence of Glass emerges as an orchestrator who holds secrets critical to both men.

Check out the trailer here:

Night Shyamalan had previously amazed viewers with films like The Sixth Sense and The Village.

During a panel discussion at San Diego Comic-Con, the award-winning director said that the audience can expect some world-class performance from all the three actors in the upcoming horror film. He also talked about the time gap between the two films and how two different studios came on board.

I don't think this will ever happen again, where two studios had two [intellectual properties] they completely owned, and I said 'can we make a sequel to both, and you guys share it?' and they said yes.

Glass is scheduled for release on January 18, 2019.