Bruce Willis returns as John McClane in A Good Day to Die Hard, alongside newcomer Jai Courtney who plays wayward son Jack McClane.
The franchise's fifth instalment sees father and son forced to team up to prevent a nuclear weapons heist in Russia.
Willis and Courtney spoke to Digital Spy about the family conflict that becomes central to the film's plot.
"John McClane always thinks he knows more than he really knows, and he certainly thinks he's smarter than his son, and his son's actually far smarter than he is," Willis mused.
"We just complemented each other," Courtney agreed. "It was kind of natural, we really had fun with it."
Willis went on to discuss his favourite moments from the Die Hard series as a whole.
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A Good Day to Die Hard is released tomorrow (February 14).
Watch a clip below: