The actor first spoke about the personality differences between father and son in this new adventure.
"The relationship isn't always functional. These are two guys who have been estranged for some time. John likes to wing it, see what happens. Jack's more of a strategist."
He also spoke about how the ante is upped even further by placing these two in the unfamiliar environment of Moscow.
"That's the thing about the Die Hard franchise, John's always a fish out of water. What could be further out of water for him than Russia?"
When asked about the bad guys that the McClane's square off against, sadly, Jai Courtney wouldn't divulge any details.
"I can't say much about the villains without giving it away."
A Good Day to Die Hard was released February 14th, 2013 and stars Bruce Willis, Mary Elizabeth Winstead, Jai Courtney, Yuliya Snigir, Patrick Stewart, Megalyn Echikunwoke, Cole Hauser, Anne Vyalitsyna. The film is directed by John Moore.