Matthew Vaughn's superhero movie X-Men: First Class is currently filming in London, with a release date set for June 3, 2012. MTV Splash Page was able to get a hold of James McAvoy, who plays a younger Professor Charles Xavier (a.k.a. Professor X), and he told the site how he planned on distinguishing his performance from Patrick Stewart's earlier turns. Here's what James McAvoy had to say:

"I think the fun about these films, when you go back and you either reboot or do a prequel, is you get to see how people became who they are. That means that you have to do them differently and by the end of the movie you have to do them the same way. The interesting journey is what happens to them, what changes them, what makes them evolve - not just mutate, but emotionally and psychologically evolve."
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James McAvoy joked that he wanted to, "bury Patrick's performance," but meant that he doesn't necessarily have to follow Patrick Stewart's exact mannerisms, since this was a prequel. However, he did hint that his Professor X could be closer to Patrick Stewart's by the end of the movie:

"I would suggest by the end of the movie and the start of the next movie, it'll be more like what Patrick does," he added. "Or maybe not. Maybe it will still be in a period of flux, if there is a new movie."