The Clayface movie is being called DC Studios’ riskiest swing yet. We’re not getting an another superhero spectacle. Instead we’re getting a gruesome body horror tragedy. Starring Tom Rhys Harries, the R-rated Clayface movie is set to hit theaters on October 23, 2026. Behind the scenes, however, even more surprises are being uncovered. From a horror legend’s script to a shifted release date, the story behind this film is fascinating. So, here are seven jaw-dropping facts about DC’s horrific Clayface movie.
Table of Contents
- 1. It’s DC Studios’ First Horror Movie, and It’s Rated R
- 2. Mike Flanagan Wrote It, but He Didn’t Direct It
- 3. A Horror Veteran Is Behind the Camera
- 4. Tom Rhys Harries Plays Matt Hagen, Not Basil Karlo
- 5. The Release Date Was Moved to Halloween Season
- 6. Clayface Has Haunted Gotham for 86 Years
- 7. It Cost a Fraction of a Typical Superhero Movie
- Clayface FAQ
- Final Thoughts
1. It’s DC Studios’ First Horror Movie, and It’s Rated R
Here’s the first horrific trailer.
The Clayface movie is being sold as DC Studios’ first honest-to-goodness horror film. Fittingly, this is a genre that James Gunn knows very well. After all, his career was launched with Troma films, the Dawn of the Dead (2004) script, and Slither. Meanwhile, horror is a genre that Marvel Studios still hasn’t quite cracked.
Horror tropes have been sprinkled into films like Doctor Strange in the Multiverse of Madness. However, full horror projects have mostly been limited to Werewolf by Night and Marvel Zombies. Even The New Mutants was planned as a horror flick at Fox, but it sat in limbo for years.
On the other hand, DC is going all in. The Clayface movie has been given an R rating. Notably, that’s a first for the new DCU’s theatrical releases. It’s also only the third DCU film, following Superman and Supergirl. As a result, a big bet is being placed on horror this early in the franchise.
Better yet, the tone is being set by body horror, tragedy, and practical effects. So, if you’re expecting capes and city-leveling fights, the Clayface movie may surprise you. Instead, a slow and painful transformation is being promised.
2. Mike Flanagan Wrote It, but He Didn’t Direct It
The Clayface movie was written by Mike Flanagan, one of modern horror’s most respected storytellers. His films include Oculus, Hush, Gerald’s Game, and Doctor Sleep. Additionally, he wrote and directed The Life of Chuck (2025). On Netflix, his name was made with The Haunting of Hill House, Midnight Mass, and The Fall of the House of Usher.
Unlike most superhero films, this one isn’t being built to launch a dozen sequels. Years ago, Flanagan publicly said he wanted to make a standalone Clayface horror tragedy. Eventually, the idea was pitched to DC Studios. However, prior commitments kept him from directing the Clayface movie himself.
Meanwhile, the screenplay was co-written by Hossein Amini. He’s best known for writing Drive and The Wings of the Dove, which earned him an Oscar nomination. He also directed The Two Faces of January. In 2025, Amini was brought in to rewrite the script.
Thematically, the Clayface movie is expected to explore lost identity, toxic love, and reckless scientific ambition. Those ideas sit right in Flanagan’s wheelhouse. After all, his stories often focus on grief and broken people, not just jump scares. As a result, an emotional gut punch should be expected.
3. A Horror Veteran Is Behind the Camera
James Watkins is no stranger to horror either. His directing debut, Eden Lake (2008), is still considered one of Britain’s most brutal thrillers. Then, The Woman in Black (2012) was turned into a hit starring Daniel Radcliffe. More recently, he remade Speak No Evil (2024) with James McAvoy. On the small screen, he directed the the Black Mirror episode “Shut Up and Dance.”
Because of that track record, the Clayface movie is in experienced hands. Watkins is known for slow-burn dread rather than cheap scares. So, we can expect a grounded and unsettling tone.
Behind the scenes, the Clayface movie is being produced by Matt Reeves, Lynn Harris, James Gunn, and Peter Safran. Reeves and Harris are producing through 6th & Idaho, the company behind The Batman and The Penguin.
Most of the film was shot in Liverpool, England, which was transformed into Gotham City. Cinematography was handled by Rob Hardy, known for Ex Machina, Annihilation, and Civil War. Additionally, the score was composed by Volker Bertelmann, an Oscar winner for All Quiet on the Western Front. Together, this team gives the Clayface movie real prestige horror credentials.
4. Tom Rhys Harries Plays Matt Hagen, Not Basil Karlo
Tom Rhys Harries takes the lead as Matt Hagen, not Basil Karlo. In the comics, Karlo was the original Clayface and a washed-up horror actor. However, the Clayface movie borrows that Hollywood angle and gives it to Hagen instead.
In the film, Hagen is a Gotham street kid who grows up to be a handsome Hollywood leading man. Unfortunately, a run-in with a local crime boss leaves him horribly disfigured. Abandoned by his team, he agrees to an experimental treatment. At first, his face is restored. Soon after, though, his body slowly turns to clay, and his sanity begins to slip.
Naomi Ackie plays Dr. Caitlin Bates, the scientist behind the treatment. Fans may notice that her last name could be a nod to Psycho’s Bates Motel. The Clayface movie also stars David Dencik, Max Minghella, Eddie Marsan, Nancy Carroll, and Joshua James.
Harries is still a fairly new face to U.S. audiences. Before the Clayface movie, he was seen in Netflix’s White Lines, Apple TV+’s Suspicion, and the Doctor Who episode “Dot and Bubble.” He also appeared in Guy Ritchie’s The Gentlemen alongside Eddie Marsan. Now, a leading role in a DCU film could make him a star.
5. The Release Date Was Moved to Halloween Season
An interesting bit of trivia is that when DC Studios first announced the film, it was given a September 11, 2026 release date. That weekend has been a gold mine for Warner Bros. horror. In fact, It, The Nun, and Beetlejuice Beetlejuice all opened in that post-Labor Day slot.
However, the Clayface movie was later moved to the spookiest month of the year. Its September date was handed to the Practical Magic sequel instead. Now, the Clayface movie opens on October 23, 2026, in the U.S., UK, and Ireland.
Honestly, the move makes a lot of sense for a horror release. Halloween season crowds are already primed for scares. Plus, the film gets extra breathing room after Supergirl’s summer run.
According to Wikipedia, the Clayface movie clocks in at a brisk 108 minutes. That’s noticeably shorter than most modern superhero films, which often push past two and a half hours. For comparison, Superman (2025) ran just over two hours. As a result, it promises a tighter and leaner story.
So, if you want a scary night out before Halloween, mark your calendar now. The Clayface movie should be one of the season’s biggest genre events.
6. Clayface Has Haunted Gotham for 86 Years
Clayface has been haunting Gotham City for 86 years. The character debuted in Detective Comics #40 in 1940, created by Bob Kane and Bill Finger. Originally, Basil Karlo was a B-movie horror actor with no powers at all. After being left out of a remake of his classic film, he snapped. Then, he went on a killing spree in a clay mask.
Matt Hagen was introduced in Detective Comics #298 in 1961. Unlike Karlo, Hagen was a treasure hunter who gained true shapeshifting powers. His transformation came from a strange protoplasmic pool found inside a cave. Later, Preston Payne became the third Clayface in the late 1970s. After that, Sondra Fuller took on the mantle as Lady Clay.
On screen, Batman: The Animated Series gave Hagen his most famous version in “Feat of Clay.” That episode made him an actor, much like the new Clayface movie. More recently, Clayface was voiced by Alan Tudyk in the DCU’s own Creature Commandos.
Interestingly, the character has been written as both villain and tragic hero. In the 2016 Detective Comics run, Karlo even joined Batman’s team. So, the Clayface movie is drawing from decades of rich and painful history.
7. It Cost a Fraction of a Typical Superhero Movie
You would think a movie about a shape-shifting villain would be expensive. But the Clayface movie cost a fraction of a typical superhero blockbuster. Its budget is estimated at about $40 million. By comparison, Superman (2025) reportedly cost more than $200 million to make. So, much less pressure has been placed on this film.
Early tracking suggests a U.S. opening between $20 million and $26 million. Meanwhile, it needs to make roughly $100 million worldwide to break even. If those projections hold, it could quickly turn a profit.
Still, there are some risks. Clayface isn’t a household name like the Joker or the Penguin. Therefore, strong reviews and word of mouth will be needed. Horror fans may also need convincing that a DC film can deliver real scares.
Fortunately, a proven blueprint already exists. Joker was made for under $70 million and earned more than $1 billion worldwide. Horror films also tend to perform well on small budgets.
As a result, the Clayface movie could become a model for DC Studios. If it succeeds, more low-budget, genre-driven films could soon be greenlit. Imagine what could be done with villains like Man-Bat or Solomon Grundy.
Clayface FAQ
- When does the Clayface movie come out? Clayface opens in theaters on October 23, 2026.
- Who plays Clayface? Tom Rhys Harries plays Matt Hagen, who becomes Clayface.
- Is Clayface rated R? Yes, Clayface is rated R for its horror content.
- Is Clayface part of the DCU? Yes, it’s the third film in the DCU.
- Is Clayface connected to The Batman? Matt Reeves produces, but it’s a DCU film, not part of his Batman saga.
- Did Mike Flanagan direct Clayface? No, Flanagan co-wrote it; James Watkins directed.
- How long is Clayface? The runtime is 108 minutes.
Clearly, the Clayface movie is unlike anything DC Studios has attempted before. With an R rating, a Mike Flanagan story, and a horror veteran directing, real scares are being promised. Meanwhile, one of Batman’s most tragic villains is finally being given the spotlight. If it succeeds, more horror-driven DC films could soon be greenlit.
Which of these seven facts surprised you most?
Let us know in the comments below.
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