Ian McKellen and Patrick Stewart, two of the stars of the X-Men motion picture trilogy, usher in the summer movie season with a two-night X-Men sneak preview only on FOX. McKellen and Stewart star as rival mutant leaders Magneto and Xavier, respectively, in the blockbusters X-Men and X2: X-Men United, and in the highly anticipated summer movie event X-Men: The Last Stand, which opens worldwide May 26.

On Thursday, May 11 (8:30-8:37 PM ET/PT), McKellen will introduce an exclusive seven-minute preview of Twentieth Century Fox's upcoming X-Men: The Last Stand. The special, which includes a sneak peek of the movie, is a must-see for fans of the blockbuster" X-Men" franchise. Check out never-before-seen clips featuring two characters new to the film franchise - Beast (Kelsey Grammer) and Angel (Ben Foster) - in addition to returning characters Storm (Halle Berry) and Wolverine (Hugh Jackman).

As a bonus for X-Men fans, Stewart joins McKellen on Friday, May 19 (8:00-10:30 PM ET/PT) to host the World Broadcast Premiere of X2: X-Men United on FOX. Throughout the night, they will check in to introduce the newest mutant heroes and villains from X-Men: The Last Stand.

In X2: X-Men United, the X-Men are faced with increasing discrimination after an unforeseen enemy launches a devastating attack, causing public outcry and renewed support for the Mutant Registration Act. William Stryker (Brian Cox) puts into motion a plan to eradicate the mutants and begins an offensive on the X-Men. Magneto (McKellen) and Xavier (Stewart) form an unexpected alliance, and with the fates of mankind and mutantkind in their hands, the X-Men face their most dangerous mission ever!

In the upcoming theatrical release X-Men: The Last Stand, a "cure" for mutancy threatens to alter the course of history. For the first time, mutants have a choice: retain their uniqueness, although it isolates and alienates them, or give up their powers and become human. The opposing viewpoints of mutant leaders 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. "X-Men: The Last Stand arrives in theaters May 26.

X-Men: The Last Stand was released May 26th, 2006 and stars Hugh Jackman, Halle Berry, Ian McKellen, Patrick Stewart, Famke Janssen, Anna Paquin, Kelsey Grammer, James Marsden. The film is directed by Brett Ratner.