Sophie Turner's Jean Grey goes to the darkside in the first trailer for the latest instalment from the X-Men franchise – Dark Phoenix.
In the trailer for the film, which centres on Turner's Jean Grey transforming into the villainous Dark Phoenix, we see her at odds with her fellow X-Men.
James McAvoy's Professor X grapples with his decision to keep secrets about her past from her, and the fallout of doing so.
When Jean visits Magneto (Michael Fassbender) he sees "evil" inside her and the rest of the X-Men are torn between their loyalty to Jean and the destructive path she is on.
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Dark Phoenix takes place 10 years on from the events of X-Men: Apocalypse and is set to launch a new trilogy in the X-Men world that will focus on the younger versions of the original characters.
Dark Phoenix hits cinemas in February 2019.