Jean Grey is a superhero who has lost control over her emotions.
And then she was hit by a cosmic force that gave her more powers than any mutant in the universe.
It also resurrected negative emotions from her past that were suppressed – emotions that could cause her to go on a rage-filled attack and tear the X-Men apart (and destroy the Earth, too).
The X-Men film Dark Phoenix (PG-13) opens this weekend, starring Sophie Turner as Jean Grey/Phoenix, James McAvoy as Professor Charles Xavier, Jennifer Lawrence as Raven/Mystique, and Jessica Chastain as the evil Vuk.
It is the 12th X-Men film.