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One Must Change
REPORTED RELEASE DATENovember 30, 202621 days away
WHAT WE KNOW SO FAR
With an enemy army closing in, this war council meeting shouldn't be as dull as it is... To the Queens delight, it spirals into chaos when rival royal twins must settle their differences the only way they know how; an extremely ill-timed dual.
MOVIHERO RELEASE SNAPSHOT
What we know about One Must Change before release.
One Must Change is currently set for November 30, 2026, 21 days away. Ruby Ballantyne, Cameron Wight are directing the film. The listed cast includes Cameron Carnegie-Brown as Prince Alaric, Lydia Helen as Princess Eleanor, Sarah Valentine as Queen Magdalen, David Hoskin as General Tobias. A trailer is currently available on MoviHero.
ReleaseNovember 30, 2026
GenresComedy · Fantasy
Runtime6m
DirectorsRuby Ballantyne, Cameron Wight
CastCameron Carnegie-Brown as Prince Alaric, Lydia Helen as Princess Eleanor, Sarah Valentine as Queen Magdalen, David Hoskin as General Tobias
TrailerAvailable on this page
What is still to be confirmed
U.S. streaming service or platform-specific release date · U.S. rental or purchase availability · whether the reported date matches your local theatrical or streaming rollout.
BEFORE RELEASE
What to know about One Must Change
Reported details are listed below. A movie release date does not by itself confirm a theatrical opening in your country or a streaming launch.
When is One Must Change coming out?
The release date currently listed on MoviHero is November 30, 2026. Local dates and release formats still need to be checked with the distributor or cinema.
Where will I be able to watch it?
MoviHero has not verified a streaming service or platform-specific release date for this title. The date above should not be treated as a Netflix, Prime Video or other streaming announcement.
Who is in One Must Change?
The listed cast includes Cameron Carnegie-Brown, Lydia Helen, Sarah Valentine, David Hoskin. Explore the cast and their roles.
Is a trailer available?
Watch the trailer on this page. It offers a first look at the movie before release.
How long is One Must Change?
The listed runtime is 6m. Pre-release details may change.
Release updates
For local screenings and streaming announcements, check the distributor, cinema or platform directly.
Where to watch
Check current availabilityNo confirmed U.S. streaming, rental, or purchase options yet.
CAST & CREW
The people who make it land.
CHARACTERS IN THIS MOVIE
Follow the character.
Reviewed MoviHero character guides connected to this movie.
otherPrince AlaricPrince Alaric in One Must Change (2026), played by Cameron Carnegie-Brown.Open character guide otherPrincess EleanorPrincess Eleanor in One Must Change (2026), played by Lydia Helen.Open character guide otherQueen MagdalenQueen Magdalen in One Must Change (2026), played by Sarah Valentine.Open character guide
COMING AFTER THIS
