Die Hard is celebrating its 30th anniversary this year - but the franchise shows no signs of closing up shop.

We finally got an update on the long-rumoured Die Hard 6 courtesy of Bruce Willis' appearance on The Tonight Show with Jimmy Fallon, with the star not only confirming the project's still got life left in it, but that he's "about to wing out to California to start to see what the script looks like."

Asked more directly whether Die Hard 6 was definitely happening, Willis said only: "I think so, yeah."

With Live Free or Die Hard director Len Wiseman currently attached, the film will act as a parallel prequel/sequel, flashing back and forth between a young McClane and his present self, as the everyman cop investigates a case related to his rookie years.

The role of the younger McClane has yet to be cast, though Wiseman said of the decision: "The right casting for this role is crucial. Those bare feet have some very big shoes to fill."

Willis and Fallon also discussed the fact Die Hard has now been added to the National Film Registry by the Library of Congress. "There was a slow start on that one," the actor said of its history. "But then, it arced."