How do you look at it?

Do you dig into how other people portray fathers and sons?

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Gordon-Levitt was obviously a very different thing…

He had a special chin and everything.

I enjoyed the movie though!

My approach wasnt heavily based on imitating or mimicking Bruce really.

I think about fathers and sons, theyre totally different people.

So how do you create it?

Did you spend a lot of time together pre-filming, or was it pretty instinctive?

We kind of had a fairly natural chemistry that we discovered in the audition process.

It didnt require too much rehearsal or time; thats certainly not the nature of these kind of things.

Youve just got a job to do, and try and have fun doing it.

It was all on the page though.

They havent been hanging out for years.

So in some ways its helpful to see it on set, and see how it happens.

But how many times did you have to audition for it?

It sounded like quite a lengthy process…

It wasnt too bad.

I originally read months and months and months earlier, and nothing happened.

So I kind of forgot about it and moved on.

Could I go in and read again?

After that, there was only one audition, and then the test with Bruce.

I wonder if that relaxes you slightly?

I think thats definitely fair to say.

Heading into the audition process after that,Jack Reacherhelped me immeasurably.

So what kind of bruises do you get off aDie Hardmovie compared toSpartacus?

Spartacuswas a lot of busted fingers, because we were smacking those swords around the whole time!

But look, yknow, minor cuts and bruises on this, nothing too serious!

Can I ask you about where youre all up to onBe Here Now,the Andy Whitfield documentary?

Its funded now, I understand.

Its got the finishing touches being put on it as we speak.

I was a big part of raising awareness for that and the fundraising to get it finished.

Obviously it was Andys initiative, really, when he was still alive.

Itll just be great to see his dream realised, and see that finished.

Yknow, its a compelling story.

Its an important one.

Well, its an interesting exploration.

Theres a bit inJack Reacherwhere Werner Herzogs character is explaining how he lost his fingers.

It looked brilliantly insane from where we were sat on our side of the screen.

Youve acted opposite all sorts of people.

but acting against Werner Herzog is hardly an everyday occurence!

What was your reaction, as he was coming out with this bizarre and brilliant story?

[Laughs] It was great.

We had fun quoting that speech.

[Does brilliant Werner Herzog impression] These ones I lost in a Siberian prison.

A lot of people were nervous to have him on set, because hes such an interesting character.

But hes a sweetheart.

And he makes some very interesting films and great documentaries.

It was just a privilege.

Die Hard 6 then, with Jason Statham as well?

[Laughs] Well see about that!

Yeah man, if I get the chance to reprise the role, certainly!

Well just have to wait and see!

Jai Courtney, thank you very much.

A Good Day To Die Hardis out on the 14th February in the UK.