X-Men 3: The Last Stand

Directed by:
Brett Ratner

Written by:
Simon Kinberg & Zak Penn

Tagline:
Take a Stand

Who’s who in this movie?
Hugh Jackman - Logan/Wolverine
Halle Berry - Ororo Munroe/Storm
Ian McKellen - Eric Lensherr/Magneto
Famke Janssen - Dr. Jean Grey/Phoenix
Anna Paquin - Marie/Rogue
Kelsey Grammer - Dr. Hank McCoy/Beast
Rebecca Romijn - Raven Darkholme/Mystique
James Marsden - Scott Summers/Cyclops
Shawn Ashmore - Bobby Drake/Iceman
Aaron Stanford - John Allerdyce/Pyro
Vinnie Jones - Cain Marko/Juggernaut
Patrick Stewart - Professor Charles Xavier
Ben Foster - Warren Worthington III/Angel
Dania Ramirez - Callisto
Ellen Page - Kitty Pryde

A summary of the movie (taken from this site):
The X-Men, mutant heroes sworn to defend a world that hates and fears them, are back! This time, with the help of new recruits The Beast and Angel, they must face evolution itself in the form of their former teammate, Jean Grey. Possessed with the cosmic power of the Dark Phoenix, the resurrected Jean Grey has become a danger to herself, her mutant comrades, and the entire planet. To stave off this imminent threat to humanity, a potential cure is discovered and processed to treat -- and ultimately eliminate -- genetic mutations, once and for all. Now, as the battle lines are drawn, the X-Men, led by Professor Charles Xavier, must contend with both Jean Grey's world-consuming powers, as well as the malevolent Brotherhood, a band of powerful mutants organized under Xavier's former ally, Magneto.

In X-Men: The Last Stand, the final chapter in 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 and become human. The opposing viewpoints of mutant leaders Charles Xavier (Stewart), who preaches tolerance, and Magneto (McKellen), who believes in the survival of the fittest, are put to the ultimate test -- triggering the war to end all wars.

Mutants are on the verge of X-tinction, it seems, when US business Worthington Industries discovers a cure for mutation. This scientific breakthrough complicates and intensifies the battle - both physical and ideological - between Professor X's (Stewart) integration-friendly X-Men and the human-hating muties let by Magneto (McKellen)...