X-Men 3 Surprise Ending! Not A spoiler!

In X-MEN: THE LAST STAND, the climax of the "X-Men" motion picture trilogy, a "cure" for mutancy threatens to alter the course of history. For the first time, mutants have a choice: retain their uniqueness, though it isolates and alienates them, or give up their powers to fit in. The opposing viewpoints of mutant leaders Charles Xavier, who preaches tolerance, and Eric Lehnsherr (Magneto), who believes in the survival of the fittest, are put to the ultimate test – triggering the war to end all wars.

X-MEN: THE LAST STAND reunites the stars of the first two X-Men films: Hugh Jackman as Wolverine, a solitary fighting machine who possesses amazing healing powers, retractable adamantium claws and an animal-like fury; Halle Berry as Storm, who can manipulate all forms of weather – and fly; Ian McKellen as Magneto, a powerful mutant who can control and manipulate metal; Patrick Stewart as Xavier, a telepath and the founder and leader of the X-Men; Famke Janssen as Jean Grey, a mutant with incalculably powerful telekinetic and telepathic abilities; Anna Paquin as Rogue, who absorbs the powers and threatens the life of anyone she touches; Rebecca Romijn as the shape-shifting Mystique; James Marsden as Cyclops, whose eyes release an energy beam that can rip holes through mountains; and Shawn Ashmore as Iceman, who can lower his body temperature and radiate intense cold.

Also reprising their "X2" roles are Aaron Stanford as fire-manipulator Pyro and Daniel Cudmore as Colossus, who can change his flesh into organic steel.

Kelsey Grammer joins the X-MEN: THE LAST STAND cast as one of the "X-Men" universe’s most beloved characters: Dr. Henry McCoy, also known as Beast. McCoy is a highly intelligent geneticist, a mutant endowed with superhuman agility and physical prowess. As the subject of one of his own experiments, McCoy mutated further, growing blue, bestial fur. Brett Ratner, who established a motion picture franchise with "Rush Hour," and expanded the "Silence of the Lambs" franchise with "Red Dragon," directs.