Beast is mourning at a funeral as Jean Grey regrets what she has done to one of her friends in the video.

• Feb 28, 2019

AceShowbiz - Brace yourself for one of the biggest deaths in the "X-Men" film franchise. A new trailer for "Dark Phoenix" has been released by 20th Century Fox and it opens with a scene where Jean Grey (Sophie Turner) is crying herself out as she regrets what she has done to one of her friends.

Later in the video, Mystique (Jennifer Lawrence) tries to convince Jean to return to their side, but Jean can't control her power and lashes out with the force that strikes Mystique so hard. Charles (James McAvoy), Cyclops (Ty Sheridan), Storm (Alexandra Shipp), Nightcrawler (Kodi Smit-McPhee) and Quicksilver (Evan Peters) watch silently in horror.

In another scene, Beast (Nicholas Hoult) is mourning at a funeral. Judging from his emotion and the rest of the trailer that lacks Mystique's appearance, it's suffice to say that the shape-shifting mutant meets her demise during the physical encounter with Jean.

Charles is understandably terrified. "She'll kill us all," he fears, as he's clueless as to what to do with Jean. Looking forlorn, Beast a.k.a. Hank McCoy blames Charles for what has happened to Jean, but the professor insists that he was trying to protect her.

Meanwhile, Jean is seemingly under the influence of Jessica Chastain's villainous character who manipulates her mind. At one point, she also attacks Magneto (Michael Fassbender), who later joins the X-Men team to stop her.

Toward the end of the video, the X-Men are held captive while being transported in a train, with some sort of military personnel guarding them. Their ride, however, is interfered by Jean who comes for them.

In an interview with Entertainment Weekly, director Simon Kinberg confirms that Mystique is dead in the film. He explains the decision to show the death in the trailer. "It's a movie where shocking things happen, where intense, dramatic things happen," he says. "Even more than that, it was to show that Jean/Dark Phoenix is genuinely a threat to everyone, including the X-Men."

Killing the character is obviously hard for Kinberg as he admits, "I had a lot of emotions about it. I was obviously sad about it, as Jen's friend, and also as a fan of Jen as an actress." He defends the decision though, "But I felt it was the strongest, most dramatic thing for the movie, and sometimes you have to make those kinds of hard decisions to service the larger story. And the larger story really is Jean cracking up, losing control because she’s more powerful than anyone else in the world."

And Mystique is not the only character that will die in the movie as Kinberg teases, "There are certainly other major casualties in this."

Kinberg also shares more details of Chastain's character. "Her character is an alien. She comes from another planet. When you see the entity that enters Jean in space is not a solar flare - it's a cosmic force," he says. The force is known as the Phoenix Force in the comics. He adds, "Chastain's character is drawn and has been seeking out that cosmic force, and it leads her to Earth and to Jean. It's a force she either wants to control or destroy."

Stopping by "The Tonight Show Starring Jimmy Fallon" where she debuted the trailer, Chastain also spoke about her character. When asked by the host, Jimmy Fallon, if her powers are used for good or evil in the movie, Chastain coyly said, "Well I think the powers are for good, but others might think it's evil. I mean, I get to beat up a lot of X-Men in the movie... maybe kill some?"

In "Dark Phoenix", the X-Men face their most formidable and powerful foe: one of their own, Jean Grey. During a rescue mission in space, Jean is nearly killed when she is hit by a mysterious cosmic force. Once she returns home, this force not only makes her infinitely more powerful, but far more unstable.

Wrestling with this entity inside her, Jean unleashes her powers in ways she can neither comprehend nor contain. With Jean spiraling out of control, and hurting the ones she loves most, she begins to unravel the very fabric that holds the X-Men together. Now, with this family falling apart, they must find a way to unite -- not only to save Jean's soul, but to save our very planet from aliens who wish to weaponize this force and rule the galaxy.

Also written by Kinberg, the movie is scheduled to be released on June 7 in the United States.