The film features an ensemble cast returning from previous installments alongside several new additions:
A pharmaceutical company develops a permanent suppressant for the X-gene, derived from a young mutant named Jimmy. This discovery splits the mutant world: some, like Rogue, consider it a chance to live a "normal" life, while others, like Magneto, see it as a declaration of war against their species. X-Men - Conflitto finale
Following her apparent death in the previous film, Jean Grey returns with a fractured mind and a destructive alternate personality known as the Phoenix . This god-like power leads to the tragic deaths of Cyclops and Professor Charles Xavier. The film features an ensemble cast returning from
The story is loosely adapted from two major Marvel Comics story arcs: "Gifted" and "The Dark Phoenix Saga". X-Men - Conflitto finale