In an interview with Empire Magazine, the 45-year-old Wolverine explained that this is their most ambitious X-Men movie to date… and could even rival Avatar for the biggest movie Fox has ever made.
"[Director] Bryan [Singer] has such an incredible brain," he said. "This is certainly the biggest movie Fox has made outside of Avatar, so there's pressure from all angles. But he's buzzing, and he's confident. He's gone deeper emotionally, and it's a great ensemble piece."
Bringing together the cast of the original movies as well as their younger counterparts from 'X-Men: First Class' it's without a doubt the biggest 'X-Men' movie we're likely to see for some time. But can it rival the success of 'Avatar'?
If you ask me, it certainly has a fair shot. After all, the huge ensemble cast includes fan favourites such as Sir Patrick Stewart and Sir Ian McKellan as well as the next generation of X-Men with James McAvoy and Michael Fassbender… and these names alone command quite the box-office presence.
Of course, Jackman wasn't always sure that the 'X-Men' franchise would continue… and assumed that 'X-Men: The Last Stand' would be the X-Men's final chapter.
"I thought that was it," he said. "There was already talk about doing a younger version, and I was certainly talking about Wolverine and trying to drum up interest in that. I thought the idea of another X-Men movie was done, so this was a surprise. And a welcome one."
But how does Wolverine handle being sent back in time in the upcoming 'Days of Future Past'?
"He's a warrior and he can't hide from that anymore," Jackman explained. "Even if the consequences are going to be messy and painful. If there's an era for Wolverine, it's the 70s. The hair, the mutton chops, you can smoke cigars everywhere...everything about Wolverine seems more at home in the 70s."
"There's a line that Fassbender says that may make it. He says to Wolverine, 'You spend the next 50 years trying to bring me down?' Wolverine says, 'Pretty much.' Magneto says, 'How did that go for you...'"
'X-Men: Days of Future Past' is expected in cinemas May 22, 2014.
What do you think of 'X-Men: Days of Future Past'? Will it be as big as 'Avatar'? Let us know what you think in the comments below…