Originally Posted by Great Mind(s)
I think it should happen. Days of Future Past:
Hugh Jackman (Future Wolverine)
Ian McKellen (Future Magneto)
Ellen Page (Future Kitty)
James McAvoy (Past Xavier)
Michael Fassbender (Past Magneto)
& the rest of the First Class cast.
Plot: Kitty travels through time from the future, sent by Magneto to stop the assassination of Xavier by a time-traveler. Cut back & forth between the future and past.
Exactly but why not use both casts already in place? Maybe Halle would cost too much but I'd bet everyone else would love to do it.