Stewart says he's finished shooting his scenes for the movie now, and although he can't reveal any plot details, he does feel that X-Men: Days Of Future Past is "going to be the X-Men of all X-Men pictures. One doesn't want to tempt fate, but perhaps also the blockbuster of 2014." After mentioning how great it is to be reunited with the rest of his cast-mates, he brings up something many fans have been wondering: How is Charlie Xavier back after being vaporized by Jean in X-Men 3? Obviously he doesn't explain how here (although ha fan shouts out his theory and Stewart acknowledges it) but he does reveal that we will get an explanation. Here's the full video.
“It’s interesting, its possibly 6 or 7 years since X-Men 3 when you recall Charles Xavier was vaporized by… what’s her name, Jean Grey. And you are asking yourself, ‘Well if you were vaporized, how can you be in the next X-Men movie?’ Anybody got any ideas how that came about? There will be an explanation, but it was a little puzzling to me cause I thought my X-Men days were over, but not so. So something to look forward to, cause there’s not much to look forward to these days really.”