Back in October, X-Men: Days of Future Past star James McAvoy revealed that the sequel is 20th Century Fox's second most expensive movie ever, behind Avatar. In a recent interview with Empire Magazine, Hugh Jackman confirmed the news, while praising his director, Bryan Singer

"Bryan has such an incredible brain. 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."

In the movie, Hugh Jackman's Wolverine travels back in time to the 1970s, to try and bring Professor X (James McAvoy) and Magneto (Michael Fassbender) back together. The actor revealed that the 1970s is the perfect time for Logan to be in.

"He's a warrior and he can't hide from that anymore, even if the consequences are going to be messy and painful. If there's an era for Wolverine, its the 70s. The hair, the mutton chops, you can smoke cigars everywhere...everything about Wolverine seems more at home in the 70s."

He also talks about how he thought the franchise was done after 2006's X-Men: The Last Stand, and how he was glad to come back for X-Men: Days of Future Past.

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"I thought that was it. 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."

Director Bryan Singer also describes a scene that may or may not make it into the final cut of X-Men: Days of Future Past, involving Michael Fassbender and Hugh Jackman.

"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...'"