After numerous teases, the first full trailer for X-Men: Days of Future Past has been released. The trailer doesn’t exactly tell us any more than we already know, but it’s a nice look at all your favorite mutants (and actors) from all the recent X-Men movies all together in one film. James McAvoy and Patrick Stewart as young and old Professor X is especially spine-tinglingly awesome.

If you somehow haven’t heard of Days of Future Past yet, it’s basically a time-traveling tale that brings together the new generation cast of First Class with the older gang from the X-Men trilogy that started in 2000. It comes out next year on May 23rd.