“You never know when you meet your heroes,” Butler says.

In the exclusive video above, Butler reveals he didn’t know if he and Hardy would get along.

“And Tom makes me laugh harder than almost anyone in this world.”

Boyd Holdbrook as Cal, Austin Butler as Benny and Tom Hardy as Johnny in director Jeff Nichols' THE BIKERIDER

Tom Hardy in ‘The Bikeriders’.Mike Faist/Focus Features

“We didn’t know what he was going to sound like,” producer Sarah Green says.

“When he first opened his mouth, it was like, we all went, ‘What?!

That’s so wild!’

Austin Butler stars as Benny

Austin Butler in ‘The Bikeriders’.Courtesy of Focus Features

There was a little Marlon Brando in there; I think there was a little Jimmy Cagney in there.

It worked so well for us.”

Writer-director Jeff Nichols reveals that Butler also had a major impact on everyone working on the movie.

“Austin Butler, just on sight, starts to change the way people behave,” he says.

“The air changes.

The temperature changes.”

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“It was busy, and it was live,” she tells EW in a separate interview.

“I remember telling Austin at one point, ‘God, I’m so nervous.’

“And these massive biceps and triceps, glistening in the light.”

Nichols tells EW that filming Benny and Kathy’s first time meeting was “a special night.”

The Bikeridersis available to rent or own on digital beginning Tuesday.

Additional reporting by Mike Miller