In 2019, Turner reprised her role as Jean Grey for another X-Men movie. This time, the series tried once again to tackle the famed "Dark Phoenix" storyline from the comics. After an encounter with a cosmic force, Jean's already-powerful telepathic abilities are supercharged, to the point that even she can't always control them. As her mental and emotional states deteriorate, her powers only grow and her "Dark Phoenix" personality forms, putting her and everyone around her at risk.