In a new interview with TotalFilm Magazine that was first spotted by ComicBookMovie.com, Simon Kinberg, writer of X-Men: Days of Future Past, was asked about a major change to the story from the comic book's source material. Why, he was asked, did Wolverine take the pivotal role away from Kitty Pryde, as the one who travels through time?
Well, turns out it's simple logic.
"When we started thinking about the logistical realities of Kitty’s consciousness being sent back in time, to her younger self, as opposed to her physical body being sent back.. It was impossible. Obviously in the book it’s Kitty… But you’re talking about an actress (Ellen Page) who, in the age of Michael Fassbender and James McAvoy, would have been negative 20 years old. So we started thinking again, and the first reflex response to that was a character who doesn’t age. Wolverine is the only character who would looks the same in 1973 as he does in the future."
Kinberg also acknowledged that Wolverine's popularity as the anchor to the film franchise, as portrayed by Hugh Jackman, went into the decision as well. That's probably what kept Beast out of contention - he is another character, thanks to X-Men: The Last Stand and X-Men First Class, that could very well exist in both times - but he's not quite as popular as Wolverine.
X-Men: Days of Future Past is due in theaters May 23, 2014.