Hugh Jackman has said that he doesn't take his role of Wolverine for granted as he knows the role will eventually be re-cast to a younger star.

The Prisoners star told IGN that he knows he will lose the role sooner or later and believes that a younger actor was considered to replace him for 2011's X-Men: First Class, "I'm sure they had the discussion. They didn't mention it to me, obviously.

"Look, that's inevitable, man. Anyone who thinks they're indispensable in this business is fooling themselves. But I feel unbelievably blessed to have this part. I never thought in a million years I'd get to play him seven times. Every day I walk on the set with the claws and the hair, I think my lucky stars. I don't take any of it for granted.  To think that in a second version we'd have this cast and this director, and you guys don't know the script, but I would say probably the best script of all of them, it's pretty amazing."

He added, "I think that's why I'm still here. I'm sure, by the way, that it won't always be my decision to always be here. At some point, someone will close the door on me."

X-Men: Days of Future Past is set for release on May 22.