Quick, name every single character in the X-Men Universe you spot in the ‘Days Of Future Past’ trailer. I got Wolverine with silver hair, Professor X, Old Magneto, Fassenbender Magneto, Cable (!), Mystique, Young Professor X and a few more. Now try to figure out how interesting a time period it is at the helm dealing with mutants and the sort. X-Men: Days Of Future Past doesn’t arrive in theaters until next May but it might be the most interesting arc in the 13-year history of the X-Men franchise on the big screen.