Jai Courtney said that he worked his butt off whilst filming A Good Day To Die Hard and Bruce Willis was a joy to work with.
The actor takes on the role of John McClane’s son in A Good Day To Die Hard - which is the fifth film in the Die Hard franchise.
Speaking to Total Film the actor said: "It’s a huge franchise to be part of. We worked our butts off and I hope the fans are happy.
"Sometimes it’s tricky with something that has been going so long, people’s expectations change... But, man, I just made the most of it. Bruce was a joy to work with, he’s a cool guy."
A Good Day To Die Hard sees John Moore in the director's chair and the likes of Cole Hauser will be joining Willis and Courtney on the cast list.
And it is action roles all the way for Courtney as he will be back on the big screen this Christmas with Tom Cruise in Jack Reacher.
He has also completed work on I, Frankenstein and is currently filming Felony with Melissa George and Joel Edgerton.
A Good Day To Die Hard is released 14th February.