Since the first rumblings of "Die Hard 6" occurred a week ago, fans of the iconic action franchise have no doubt wondered what leading man Bruce Willis thinks about this prequel news. ET caught up with the actor at the premiere of "Rock the Kasbah" and got the chance to talk to John McClane about the potential prequel.

"It's a very good idea, a really tricky idea, and I'm very happy about it," said Willis. "It's a really cool idea, because it's the origin story. It's gonna happen at the beginning of this. We're going to bounce back and forth."

As Willis alluded to, the film -- tentatively titled "Die Hard: Year One" -- will be set years before the events of "Die Hard" that would only star Willis in modern-day scenes. The film is currently being developed by Fox with “Live Free Or Die Hard” director Len Wiseman and "Transformers" producer Lorenzo di Bonaventura.

Even if he doesn't appear in the film, Willis said he is "probably going to produce" it. And Willis said he didn't have any leads on who will play the young McClane: ""We're not there yet. Hopefully he's got a hard head."