The title X-Men: Days of Future Past is looking more and more like a meta title. First, the director of the first two X-Men flicks, Bryan Singer, is back on board, and now? Singer took to Twitter to inform fans that Patrick Stewart and Ian McKellen are reprising their roles as Xavier and Magneto. Don’t worry, James McAvoy and Michael Fassbender are still in; there’s just some time traveling going on.

Here’s the plot to clarify things a bit:

“The storyline alternates between present day, in which the X-Men fight Mystique’s Brotherhood of Evil Mutants, and a future timeline caused by the X-Men’s failure to prevent the Brotherhood from assassinating Senator Robert Kelly. In this future universe, Sentinels rule the United States, and mutants live in internment camps. The present-day X-Men are forewarned of the possible future by a future version of their teammate Kitty Pryde, whose mind traveled back in time and possessed her younger self to warn the X-Men.”

It’s evidently a very strong cast. Though, with both Stewart and McKellen back, I’m curious on how the new film is connected to the prior X-Men movies, if at all. Then again, it is an alternate timeline.

I’m pretty stoked with Sentinels being a proper threat for the X-Men, especially since they were prominent in the 90s cartoon. A lot of fans in their 20s are going to feel nostalgic.

X-Men: Days of Future Past releases in theaters July 18, 2014.