Ian McKellen, Patrick Stewart returning for 'X-Men: Days of Future Past'

Patrick Stewart and Ian McKellen as Prof. X and Magneto in 2006's "X-Men: The Last Stand."

Story highlights

  • Ian McKellen and Patrick Stewart have been cast in "X-Men: Days of Future Past"
  • McKellen will reprise his role as Magneto and Stewart will be back as Prof. X
  • Michael Fassbender and James McAvoy of "X-Men: First Class" will also portray Magneto and Prof. X
  • The casting news hints that the next film will reconstitute a 1981 comic book storyline