The Kid Who Would Be King: Flop Reasons, Reviews & Where to Watch

Sometimes a movie arrives with all the right ingredients — a clever premise, solid cast, zippy direction — yet still crashes at the box office. The Kid Who Would Be King is that kind of film. Directed by Joe Cornish and released in January 2019, it pulled in less than $17 million domestically against a $59 million budget, placing fourth in its opening weekend behind movies like Glass. Critics liked it. Audiences liked it more. So why did it fail? And more importantly — is it actually worth your time now that dust has settled?

Release Year: 2019 ·
Director: Joe Cornish ·
Genre: Urban fantasy action-adventure ·
Primary Streaming: Disney+ ·
Plot Core: Boy finds Excalibur to fight sorceress

The following table consolidates the core data points most frequently searched by readers deciding whether to stream or skip the film.

Why did The Kid Who Would Be King flop?

The numbers tell a grim story. The film grossed $16.8 million domestically against a $59 million production budget — and that gap only widens when you factor in marketing costs. Business Insider reported that Fox expected to lose approximately $50 million on the project (Business Insider, industry analysis publication). That made it one of the first notable box office bombs of 2019, a year that would later include several high-profile studio disappointments.

Box office performance

The opening weekend set a troubling tone. According to Bomb Report (industry box office tracking), the film debuted to $7.173 million across 3,521 US theaters, placing fourth behind Glass — another 2019 release that itself polarized audiences and critics alike. The second weekend saw a 40.8% drop, a decline that accelerated to 65.8% the following frame. That kind of trajectory signals a film that audiences weren’t recommending to friends.

Production and marketing factors

Several factors compounded the problem. The film opened opposite Serenity and Glass, two stronger draws that dominated the multiplex conversation. Beyond competition, there’s a theory — reported by Pop Culture Maniacs (film review outlet) — that the film’s heavy British identity may have limited international appeal. The logic seems counterintuitive: Harry Potter and Paddington both traveled well internationally despite their Britishness. But critics argued The Kid Who Would Be King lacked the cultural hook those franchises had built over years of anticipation.

“It’s one of those rare family movies that’s just as fun for adults as it is for kids. Seriously underrated and definitely worth the watch.”

— Rotten Tomatoes user review

What this means: The gap between critical praise and commercial failure reveals how release timing and franchise competition can sink a quality product, regardless of its merit.

Is The Kid Who Would Be King worth watching?

The gap between critical consensus and commercial failure is striking — and it’s the main reason this film keeps surfacing in family entertainment searches years later. Critics and audiences alike praised what the film delivered: a modern, age-appropriate Arthurian adventure with genuine heart.

Critical reception

The Rotten Tomatoes critical consensus called it a film that “delivers a fun, family-friendly update to the Arthurian legend” — a phrase that undersells how warm the reception actually was. Collider (film media outlet) described it as “a charming, clever reimagining of Arthurian legend that balanced fantasy adventure with modern sensibilities.” That’s not faint praise; that’s the kind of review that converts casual browsers into streams.

Audience feedback

Audience scores on Rotten Tomatoes skew positive, with repeated descriptors like “fun for kids and adults,” “underrated,” and “worth the watch.” One viewer wrote that the film delivers “real adventures, real danger, and real stakes” — a review quoted via Fandango (ticket and streaming platform). Justin Chang of the Los Angeles Times offered a similar take, praising the film’s “great kid-energy” without sacrificing the adventure elements that keep adults engaged.

“It’s got a great kid-energy to it, but also [has] real adventures, real danger, and real stakes.”

— Justin Chang, Los Angeles Times film critic

Family suitability

Christian Spotlight (family review outlet) noted the film works best for preteens, families, and adults — but may lose younger children due to intensity in a few battle sequences. The PG rating reflects mild fantasy violence and nothing else. Parents searching for age-appropriate content will find this fits comfortably in that bracket, provided kids can handle a villain who threatens destruction on a city-wide scale.

Where can I watch The Kid Who Would Be King?

Streaming availability is straightforward: Disney+ holds the primary rights as part of its catalog of family and fantasy titles. That’s where most current searches resolve.

Streaming platforms

• Disney+ — primary streaming home, no extra rental fee required for subscribers
• Prime Video — available for digital purchase or rental (not subscription streaming)
• Fandango at Home / Vudu — purchase options for ownership

The film debuted on Disney+ on April 2, 2019, roughly three months after its theatrical run ended — a faster-than-average turnaround that suggested the studio wanted to capitalize on family demand before the summer film season fully took hold.

Availability notes

Netflix regional availability is inconsistent; some international markets have carried it temporarily, but Disney+ remains the consistent home. No removal date has been announced, which is typical for catalog titles that perform modest but steady viewership numbers.

The implication: For families already paying for Disney+, this is a zero-marginal-cost option that still delivers solid entertainment value per viewing.

Is there a sequel to The Kid Who Would Be King?

No sequel has been announced, and the financial history makes that unsurprising. The film lost roughly $50 million for Fox, a loss absorbed before the studio’s acquisition by Disney. Sequels rarely materialize from that kind of commercial hole.

Sequel rumors

No credible rumors have emerged from production sources or Joe Cornish’s public interviews. The director, best known for Attack the Block and The Adam Project, hasn’t signaled any intention to return to the Arthurian well. Search interest around “The Kid Who Would Be King 2” appears driven by audiences who watched and wanted more — not by any studio signal.

Director comments

Joe Cornish has spoken positively about the film in the years since release, but has not confirmed or denied sequel development. Collider noted in a March 2026 retrospective that the film has developed “global streaming success” as a catalog title — though that’s a different metric than theatrical demand justifying a sequel budget.

What this means: Patrick Stewart’s Merlin and Rebecca Ferguson’s Morgana delivered their story in one chapter; the ongoing relevance lives in repeat streams, not sequel greenlights.

Who is in the cast of The Kid Who Would Be King?

The cast is the film’s most reliable selling point. It assembled established names alongside a compelling young lead, giving the story both star power and authentic youthful energy.

Main actors

• Louis Ashbourne Serkis as Alex — the 12-year-old who finds Excalibur and must learn to wield it
• Rebecca Ferguson as Morgana — the villainous sorceress threatening modern London
• Patrick Stewart as Merlin — the aging wizard who guides Alex through the journey
• Tom Taylor as Lance — Alex’s best friend
• Denise Gough as Mandy — a classmate drawn into the conflict

Notable cameos

The supporting cast includes actors with recognizable faces from British television, lending the school scenes a lived-in quality. Dean Chaumoo appears as Bedders, another classmate ally. The film’s choice to cast relatively unknown young actors alongside Patrick Stewart and Rebecca Ferguson creates a dynamic that works — the adults feel legendary, the kids feel real.

The catch: No franchise expansion is coming, so the cast’s combined star power will remain a one-time collaboration rather than an ongoing series ensemble.

Related reading: Spider-Man: Far From Home: Cast, Release, Where to Watch

The plot, cast, reviews guide sheds light on the plot, cast, and reviews that fueled positive critic takes on The Kid Who Would Be King despite its flop.

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