S is for Sophie Turner
Along with Cyclops, Storm and Nightcrawler, Jean Grey is another A-list X-Man returning to the franchise as a teenager. "Game of Thrones'" Sophie Turner takes over the role from Famke Janssen, who previously appeared in the first "X-Men" trilogy and had cameos in "The Wolverine" and "Days of Future Past." Turner says her telepathic teen is much more isolated and alienated this time around, and there's also something darker lurking within her. X-Men fans should keep a look out for flashes of the Phoenix in this film, as Turner, Kinberg and Singer have all hinted that Jean Grey-centric "Dark Phonix Saga" could inspire the next X-Men film.
T is for Timeline
"X-Men: Apocalypse" is set in 1983. This follows a tradition of jumping through decades that was established with "X-Men: First Class." That film was set in 1962, and it's follow-up "X-Men: Days of Future Past" was set in 1973. And yes, the next "X-Men" film, which hasn't been officially announced yet, will take place in the '90s. Additionally, "X-Men: Apocalypse" is the first film set in the franchise's new timeline. "X-Men: Days of Future Past" was a time-travel epic, one that brought the cast from the first X-Men trilogy together with the younger characters from "X-Men: First Class." During "DOFP," a time-traveling Wolverine definitively altered history and created a new timeline -- which is the timeline that "Apocalypse" is set in. Make sense? That's why this film is able to introduce previously seen characters like Nightcrawler, Storm, Jean Grey and Cyclops in a totally new way.
U is for Uniforms
Despite their potentially spoilery nature, the team's colorful costumes have been prominently featured in magazine photo shoots and TV spots. But we now know that the X-Men wear costumes that aren't their all-black body armor, which is what they're sporting in pretty much every other poster and trailer. These individualized looks are the closest the films have ever come to the comics; Cyclops, Jean Grey and Storm are all wearing what look like modifications of the costumes Jim Lee designed back in 1991, and Nightcrawler's wearing his classic red and black getup. "X-Men: Apocalypse" is the film that finally brings the comic looks to the big screen.
V is for Villains
"X-Men: Apocalypse" is all about the villains. That's appropriate considering that the film is named after the villain, which is the first time that's happened in the X-Men film franchise. And not only does the film have Apocalypse, but the film also features his dangerous Horsemen: Storm, Angel, Psylocke and Magneto. Each of them has been given a power boost and a new mission, but they've also fallen under the sway of Apocalypse -- a villain described as a fanatical cult leader.
W is for Weapon X
Even before it was confirmed that Wolverine would have a part to play in "Apocalypse," it was revealed that one scene in the movie would take place in the Weapon X facility. This is the mutant soldier factory that birthed Wolverine, coating his skeleton -- and bone claws -- in the indestructible metal known as adamantium. The facility was previously seen in 2003's "X2" and 2009's "X-Men Origins: Wolverine." The latter told the tale of how Logan became the metal-clawed Wolverine. The timeline-reset means that, yes, we get to see these events unfold in a slightly different way, and we'll get to see a Wolverine that's unlike anything we've seen before; producer Simon Kinberg called him "violent" and "visceral."
X is for Xavier
James McAvoy takes the lead as Charles Xavier for the third time, completing a trilogy started with 2011's "X-Men: First Class." This time around, Xavier will confront an evil unlike any he's ever faced before, and he'll come face to face with what may be the first mutant ever. Of course that mutant is Apocalypse, and Apocalypse doesn't treat Xavier very well at all. Most importantly, though, "Apocalypse" will see McAvoy take on Xavier's most iconic characteristic: his hairstyle. Or rather his lack-of-hair style. The film even documented McAvoy's transformation into the bald leader with a behind-the-scenes featurette.
"X-Men: Apocalypse" opens in U.S. theaters May 27.