Sir Ian McKellan and Sir Patrick Stewart have signed up for the new X-Men movie, according to reports.
The film, Days Of Future Past, is a follow-up to the 2011 prequel X-Men: First Class.
Director Bryan Singer announced that Sir Ian and Sir Patrick would star in the film.
"Thrilled to announce @ianmckellen118 & @SirPatStew are joining the cast of #XMEN #DaysOfFuturePast #magneto #professorX," he tweeted.
The director also makes a return to the hit franchise after making the first two movies - X-Men and X2 - in the series.
Michael and James are also set to star in the new film, due out in 2014.