SFX quotes Singer, who is directing the film, as saying:
“It’s not just another X-Men film; it’s not just about the combined cast as there will be certain technologies and other stuff that we haven’t seen before in the X-Men films.”
“There are also issues of time and we’re messing about with that,” He says of the inclusion of some of the cast from the original trilogy, “I think we’ve got it figured out. I pitched it to James Cameron when I was in New Zealand last year and he said, ‘Yes, that makes sense.’”
“We wanted an opportunity to bring some of the favourite older and younger characters together,” says Singer. Not only are Patrick Stewart, Ian McKellen and a whole host of the original trilogies cast returning to star but Peter Dinklage (Game of Thrones) is set to make an appearance, rumoured to be playing villainous Bolivar Trask.The film hits theaters on 18 July 2014.