Helping 'A Complete Unknown' Go Electric: Boyd Holbrook Chats Playing Johnny Cash for the Director of 'Walk the Line'

He's going to Newport: Johnny Cash, that is. Twice in A Complete Unknown, the iconic singer-songwriter graces the lineup at the famous folk festival in Rhode Island in the 60s. Twice in the Bob Dylan biopic, he crosses paths with the film's subject at the event. The details depicted are in the service of Dylan's story — while James Mangold is in the director's chair, he's not remaking Walk the Line — but these wouldn't be the moments that they are, and nor would A Complete Unknown be the movie that it is, without Boyd Holbrook (The Bikeriders) as Cash opposite Timothée Chalamet's (Dune: Part Two) Dylan.

The term "goes electric" will always be synonymous with Dylan at 1965's Newport Folk Festival, where he dared to play an electric guitar in one of his sets — and the response as much as the act ensured that it went down in history. Cash helped him get there, not only by picking up the same type of instrument at the same place the year before, but through his pen-pal friendship with and encouragement of Dylan. The eight-time Oscar-nominated picture makes clear how much that Cash's words, and the effort of him taking time to commit them to paper, meant to Dylan. It goes electric, too, when Chalamet and Holbrook share scenes.

A Complete Unknown is a movie with Chalamet as Dylan, Monica Barbaro (Fubar) as Joan Baez, Edward Norton (Asteroid City) as Pete Seeger and Scoot McNairy (Speak No Evil) as Woody Guthrie. So, it's a flick filled with impressive actors portraying music greats. Given that this a film by Walk the Line director Mangold, however, it's also a picture that gives Holbrook a completely different job to his co-stars, since he's portraying Cash. What happens when the filmmaker behind an Academy Award-winning Man in Black biopic asks you to be the next actor to slip into the legend's shoes? Holbrook had been keen on a different role in the feature, he tells Concrete Playground, at a time when Cash wasn't even in the script — then found himself with a "daunting task".

Still, for anyone who has charted Holbrook's career since his 2008 big-screen debut in Milk — a span that's taken him through Behind the Candelabra, The Skeleton Twins, Gone Girl, Jane Got a Gun, The Predator, Narcos and The Sandman, just to name a few projects — it should come as no surprise that he feels like he's been preparing for this part for more than a decade. It helped that he'd made two previous films with Mangold, Logan (which uses a Cash song over its closing credits and in its trailer) and Indiana Jones and the Dial of Destiny. In fact, he sees his relationship with the filmmaker as similar to Dylan and Cash's, but with Mangold as the mentor and Holbrook the protégé. And, it equally assists that he'd also perfected swagger on-screen, which can be an elusive trait, including in his two prior roles in The Bikeriders and Justified: City Primeval. 

Yes, his A Complete Unknown performance meant facing "the Joaquin element", Holbrook explains — with Joaquin Phoenix (Joker: Folie á Deux) Oscar- and BAFTA-nominated, and the winner of a Golden Globe, for playing Cash two decades back for Mangold. But he also knew that the filmmaker, who worked with fellow screenwriter Jay Cocks (Silence) to adapt Elijah Wald's 2015 book Dylan Goes Electric! Newport, Seeger, Dylan, and the Night That Split the Sixties, had a fresh angle into Cash here. As Mangold himself also told us about the pair's relationship as pen pals, "this correspondence suddenly became central to me, because as I was trying to assemble — as much as I was trying to tell Dylan's story, he is a bit inscrutable, and I felt like you could learn more by also telling the story of those that surrounded Dylan, and the way his genius affected each of them differently".

"And what was so necessary about bringing Johnny into the story was that he's the devil on that shoulder. If you have Pete and Lomax and Joan Baez all on this shoulder saying 'stick with the team; don't cross over to that dangerous, suspicious popular music', you had Johnny Cash on the other shoulder who was saying 'track mud on someone's carpet'," Mangold continued. "Which was literally one of Johnny's lines in his letters to Bob. And that he made it his business to encourage Dylan to stay bold and to stay on the leading edge, was so wonderful to me."

For Holbrook, taking on the part meant exaggerating his music skills to Mangold to begin with; however, the quest to make good on that promise became a key part of his preparation process. We also chatted with Holbrook about his repeat collaborations with Mangold, perfecting swagger on-screen, drunk acting as Cash in one of the movie's standout scenes, and what excites him about working on a new movie or TV show — next he'll pop up in season four of The Morning Show — at this stage of his filmography.

On Having a Cash-and-Dylan Relationship with Director James Mangold After Logan, Indiana Jones and the Dial of Destiny and Now A Complete Unknown

"I don't think I would have gone anywhere near the Johnny Cash character unless it was Jim making the movie. And it was odd, because I'd read the script before we did Indiana Jones together, and I was angling at a part that I was probably too young for, but the Johnny Cash role wasn't even in there yet at the time.

And so we went off and did Indiana Jones, and then I got a call, like maybe six months before we made it. And he said 'hey, I want you to play Johnny Cash'. And I said 'how's that possible? He's not in the script'. And so he had added him because he didn't know that when he made Walk the Line that him and Bob Dylan were these pen pals. And so by his research into Bob, he found out this because Bob had kept the letters and Johnny hadn't kept the letters.

So he really just let me go off and do what I had to do, which is conjure up a character and an impression in the daunting task of playing Johnny Cash.

Jim really gives you a lot of space. And the great thing about when you get to work with Jim, on the day, if you come in prepared, he enhances your performance in a very cinematic way."

On Exaggerating His Music Skills Going Into the Film — and How Learning to Make Good on That Promise Helped Holbrook Step Into Cash's Shoes

"I knew at the end of the day that they could shoot from here up [Holbrook motions to his mid-chest] and we could get by. But it feels like I've been preparing for the last 15 or ten years to play this part. Because I played guitar. I couldn't count music. I couldn't hold a tune. I couldn't play and sing at the same time. But there is this awesome opportunity where if I just eat, breathe and sleep this character, I can pull it off.

And I think there's something really exciting about that amount of pressure, being a performer — I want to have a performance and I want to build this thing. So it almost bottlenecks down into the day of this, like 'well, you're going to sink, or you're going to swim'. And I think that's pretty exciting.

So yeah, I think the week of it all started like 'okay, I can do it at the tempo' — and it wasn't just hanging on. I was able to control the song and control the voice, control the pacing."

On Bringing Swagger to the Screen — as Johnny Cash, and Across Holbrook's Career

"Film acting is really different from theatre acting, and there's also the practical of being relaxed enough that, you know, there's this 800-pound gorilla being the camera staring at me at all times. Like, how do I just relax and embody this?

And really it's from a bunch of stuff of the art of not giving a fuck — being really adamant that 'this is who I am, take it or leave it'. And having a sense of humour about yourself. And doing all this so many times that it's just become existence. I'm not even thinking about it anymore. I'm sort of lost in what I'm doing.

It comes down to that. It comes down to a lot of rehearsals, a lot of preparation. I almost prefer the preparation to making a movie than making the movie."

On What Went Into Capturing Not Just the Essence of Cash, But the Essence of Drunk Cash

"It was from one line in particular, 'I saw the ocean', that I just knew how. I just knew where he was in a daydream. You catch yourself doing laundry or whatever around the house and you are just in a dream, and you kind of see the performance, or I do — and you just understand it. So now it's a real idea.

Then it just takes the physicalisation of staying on a word and just finding it, or whatever it is. The super subtlety of that is difficult to verbalise, but comes down to playing around with it.

I definitely wouldn't recommend going method on a long work day like that."

On Whether the Unique Task of Playing an IRL Figure for a Filmmaker Who Has Already Made a Separate Movie About Him Helped Holbrook Prepare

"I was concerned that I had to portray someone who was an iconic person and so people, so many people, have strong memories of him and who he is. Then there's the Joaquin element, facing his great performance and following that up.

But I think that Jim and I made the film, and he really understood the importance of Johnny's role in Bob's life at that time, because Johnny had been so — he's doing 200 shows a year on the road. I mean, you are a road dog. You have so much experience in this. And when you're becoming the most-famous person in the world within a year's time, Johnny was able to meet him at that fork in a road where 'hey, it's going to get weird if you don't keep your voice' or 'it's going to be okay if you just stay true to who you are'.

And I think in commerce and industries and stuff like that, when a lot of money is on the table, your voice can be compromised — and I think it's really all about that moment in the film where Bob is choosing what his voice is telling him, what he wants to say, how he wants to express himself. And that's going electric in that particular time, because he's just skyrocketing with creativity.

And so I think Johnny was able to nudge him in the right direction, remind him who he is."

On What Excites Holbrook About a New Project, Including A Complete Unknown, at This Stage in His Career

"The performance element. I never really have never sang in front of a bunch of people before. There is a sensation that goes along with that that's exciting.

I just did The Morning Show and I found out that the guy was a stand-up comic. I don't know how funny I am, but I like to be funny. I like to practice being funny. But I'd never been onstage and done a set in of people.

So that's exciting. That's like 'wow', that's slightly — not terrifying at all, but I want to know what that feels like and to do that. And I think there's all an art and a craft to how the instrument of our humanness can be used. So I  just love seeing which way I can bend and which way I can go — and how different I can sound, how different I can look?

'What is this character? What is this character going to go through? At what level? Is it kind of like he's going through like a number-two heartbreak?' But no, I want a number ten on everything. And so I really look for that highest value of expression."

A Complete Unknown released in cinemas Down Under on Thursday, January 23, 2025.

Images: courtesy of Searchlight Pictures. © 2024 Searchlight Pictures All Rights Reserved.