The new X-Men movie, Days of Future Past
, is a time-travel story set (mostly) in the early 1970s. (Yes, I read the original comic version of this story back in 1981. No, I don't know how they are going to reconcile all of the previous X-Men films.) A little bird has told me that the film will open with the Kennedy assassination.
Finally, we will learn how the magic bullet worked its magic. Magneto did it.