'X-Men: Apocalypse' preview

James McAvoy has now played Charles Xavier -- leader and creator of the X-Men -- in three different movies.

"I think I've been lucky enough to show different versions of him that I'd never seen before; that the audience had never seen before," he said.

But only in this newest film -- "X-Men: Apocalypse" -- does McAvoy's Professor X appear with the bald head that comic book and comic book movie fans associate with the character.

"It helped me get touched a lot," he said. "People would just be like: 'Oh, it's such a nice head, so fuzzy.'"

In "X-Men: Apocalypse," Professor X and the X-Men must stop the original mutant -- some ancient god-like being -- and his four horsemen of the apocalypse.

"This is my first credit, so when I got the phone call I was just like shaking," said Lana Condor. The 19-year-old learned she landed the role of Jubilee while in her high school history class. Jubilee joins the X-Men in their attempt to stop the end of the world.

"I treat every movie as if it's the last," said Evan Peters, who plays Quicksilver, a mutant who moves and thinks faster than any other being alive.

Tye Sheridan appears as a young Cyclops and teams with Jennifer Lawrence's Mystique and the rest of the X-Men to stop their former friend Magneto (Michael Fassbender), who has joined the evil god mutant as one of his four horsemen.

"I'm not a comic book person in general so it definitely was a learning curve," Rose Byrne said.

The movie opens in theaters everywhere on Friday.