When James Mangold announcedA Complete Unknown, a film delving into Bob Dylan’s transformative rise to folk and rock legend, fans quickly began speculating about what otherreal-life people would show up inA Complete Unknown. Many legendary artists crossed paths with Bob Dylan, including none other than Johnny Cash, who Dylan formed a real-life friendship with. This made the Man in Black’s inclusion seem likely, sparking curiosity over who might play the iconic musician. For many, there was one obvious choice

In 2005,James Mangold directed the Johnny Cash biopicWalk the Line, a critically acclaimed film chronicling Cash’s ascent to fame and his struggles with addiction. The film became a box office hit and is now celebrated as one of the best musical biopics of the 21st century. Its success was driven in large part by Joaquin Phoenix’s Oscar-nominated performance, which brought depth, vulnerability, and an authenticity to Cash’s larger-than-life persona. Yet, when it came time forJames Mangold to cast Johnny Cash inA Complete Unknown, he opted not to bring back Phoenix, a decision that proved essential for the integrity of the movie..

Joaquin Phoenix as Johnny Cash and Reese Witherspoon as June on stage in Walk The Line

Joaquin Phoenix Returning As Johnny Cash In A Complete Unknown Would Have Been Distracting

This Wasn’t The Line Joaquin Phoenix Needed To Walk

As much as audiences loved Phoenix’s portrayal of Cash inWalk the Line, bringing him back would have done more harm than good. For starters,A Complete Unknownis not a sequel or even a companion piece toWalk the Line. The film focuses on Bob Dylan, played by Timothée Chalamet, and the pivotal relationships in his early career.While Johnny Cash plays a supporting role in Dylan’s story, casting Phoenix would have overshadowed the film’s central narrative.

A Complete Unknown Copies A Pivotal Scene From James Mangold’s Johnny Cash Biopic

Both A Complete Unknown and James Mangold’s 2005 Johnny Cash movie use one particular song to create a pivotal moment in each singer’s life.

Phoenix’s return would have also come with significant baggage. His iconic performance inWalk the Lineremains etched in viewers’ minds, and seeing him reprise the role could have pulled focus away from Dylan’s story.Additionally, Phoenix is no longer the right age to play Cash during this specific chapter of Dylan’s life.Casting him would have required significant adjustments to the story or distracting makeup and CGI effects, none of which align with Mangold’s grounded filmmaking style.

Bob Dylan and Sylvie Russo sit on a stoop in A Complete Unknown

Mangold’s decision to start fresh with a new actor for Johnny Cash allowedA Complete Unknownto stand on its own merits. The film isn’t trying to recreateWalk the Line, and avoiding casting Phoenix helped ensure that it didn’t feel like it was. Luckily, Mangold found the perfect person to wear the black suit.

Joaquin Phoenix’s Johnny Cash Return Would’ve RobbedA Complete UnknownOf Boyd Holbrook’s Version

A Complete Unknown Needed a New Face For The Man In Black

Instead of bringing Phoenix back, Mangold cast the actor Boyd Holbrook as Johnny Cash.Holbrook, known for standout roles inNarcoswhere he played DEA agent Steve Murphy, and the calculating villain Donald Pierce inLogan,brought a fresh perspective to the role of Cash. His performance captures the essence of the man without feeling like an imitation of Phoenix or Cash himself. The decision was the right one because Holbrook’s take on Cash has been praised as a highlight ofA Complete Unknown.

Boyd’s natural charisma and nuanced acting bring authenticity to the role, making Cash feel like a real person rather than a larger-than-life icon. This version of Cash complements Dylan’s journey, helping to flesh out the world around the young singer-songwriter without detracting from Chalamet’s performance. If Phoenix had returned, there’s a good chance Holbrook wouldn’t have been cast at all. The decision to move forward with a new actor gave Mangold the freedom to cast someone who could fully inhabit the role in the context of this specific story.Holbrook’s performance is a testament to why Mangold’s choice was the right one.

Johnny Cash (Boyd Holbrook) with a cigarette in his mouth gives Bob Dylan a look as he stands in front of parked cars

James Mangold Explained Why He Never Considered Joaquin Phoenix To Be InA Complete Unknown

Joaquin Phoenix Was Never In The Cards

James Mangold has been clear that he never consideredbringing back Joaquin Phoenix forA Complete Unknown.“Johnny Cash is a character inA Complete Unknown, but this is not his story. To bring Joaquin back would have sent the wrong message about the movie we’re making.” Mangold emphasized that Dylan’s journey is the focal point, and Johnny Cash is just one of many influential figures in his orbit.

A Complete Unknown: How Johnny Cash Letters Led To Major Book Changes Explained By Director & Star

James Mangold and Boyd Holbrook talk about how the discovery of Johnny Cash and Bob Dylan’s letters led to a major book change in A Complete Unknown.

While Mangold acknowledges Phoenix’s incredible performance inWalk the Line, he believes that the two films are entirely separate, and casting Phoenix would have been inappropriate for this story. By recasting Cash, Mangold reinforced the idea thatA Complete Unknownis about Dylan’s relationships, collaborations, and creative evolution. Holbrook’s performance adds depth to the story without taking it over, something that may not have been possible with a more recognizable actor like Phoenix in the role.

Johnny Cash whispers in Bob Dylan’s ear in A Complete Unknown’s ending

A Complete Unknown

Cast

A Complete Unknown is a biographical movie that follows a young Bob Dylan as he integrates with New York and catches the eye of the folk singers in the area, eventually propelling him into stardom.

A Complete Unknown Official Teaser Poster