The last year of his life is something a much younger Keoghan could never have imagined for himself.

Later in life, when hed watch Leonardo DiCaprio inBasketball Diaries, the movie would strike a nerve.

It reminds me of home kind of stuff.

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A24

Everyone at home was caught in heroin.

Acting is not a thing where Im from, Keoghan says.

Finishing school is a big thing.

Not a lot of people finish school.

But the plays had given him the kind of confidence that can and should only come from that age.

When I watched those old movies, I saw class, Keoghan says.

It was a different way back then.

I remember my granny talking about my grandad.

I never got to meet him, but I like to think of him like that.

He was a dockland worker.

I like to think of him of someone like that,On the Waterfrontand stuff.

It touched a lot of stuff like that for me.

Slowly but steadily, work came his way.

She describes it as, He does the thing on the telly,' he says.

Keoghan originally auditioned for the film without a specific role as his target.

After a little while after he sent off the video, the call came.

I got a call that Chris Nolan wants you to go over.

I was like, Cool.'

I want stories that tackle things, Keoghan says of his hopes for the next few years.

I want stories where you either hate it or love it.

I liked that one.'