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Sony is developing a film adaptation of the 2024 horror game Mouthwashing, with Karyn Kusama set to direct from a screenplay by Matt Manfredi and Phil Hay. Scott Derrickson, C. Robert Cargill and Vince Cheng are producing; plot details, casting and a release date have not been announced.
Sony is developing a film adaptation of the horror game Mouthwashing, with Karyn Kusama set to direct from a screenplay by Matt Manfredi and Phil Hay. Scott Derrickson is attached as a producer, alongside C. Robert Cargill and Vince Cheng, according to a report by The Hollywood Reporter. The announcement brings the independently developed game into feature-film development, but no cast, release date or production schedule has been reported.
Kusama will direct, while Manfredi and Hay are writing the screenplay. The three previously worked together on Kusama’s 2015 psychological horror film The Invitation. Derrickson is not directing the adaptation, despite his involvement in the project. He will produce with C. Robert Cargill and Vince Cheng through their Crooked Highway banner.
The game was developed by Wrong Organ and published by Critical Reflex. Its story follows five crew members aboard the space freighter Tulpar after it crashes on an asteroid. With supplies dwindling and the crew isolated, paranoia and conflict grow among the survivors. The source report describes the film as an adaptation, but does not say whether its screenplay will follow the game closely or change its story.
Mouthwashing launched on PC in 2024. The report says the game has an “Overwhelmingly Positive” rating among English-language reviewers on Steam. It also says the game was released on PlayStation 5, PlayStation 4, Nintendo Switch, Xbox Series X|S, Xbox One and Xbox on PC, and became available through Game Pass on console and PC. Those details place the film announcement alongside the game’s availability across a wider range of platforms.
A Game Reaches Film Development
The project connects a recently released, independently made horror game with a feature-film development effort at Sony. For players, that may introduce the story and its setting to audiences who have not played the game. For the filmmakers, the premise offers a contained situation: a small crew trapped far from help, with pressure building as resources run low and trust breaks down.
The creative team is also a notable part of the announcement. Kusama has directed horror films including The Invitation, while Manfredi and Hay wrote that film’s screenplay. Derrickson, known for horror filmmaking, is producing rather than directing. That combination gives the adaptation an established group of collaborators, but it does not yet indicate how the film will approach the game’s distinctive story or presentation.
The project remains at the development stage, so its significance is currently about the plans and talent attached, not a completed film or confirmed release. The report gives no production start date, casting information or details about the intended audience and distribution schedule.
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From 2024 Game to Film
Mouthwashing was released on PC in 2024, developed by Wrong Organ and published by Critical Reflex. The game’s central situation is a crash on an asteroid, leaving five members of the Tulpar crew isolated with limited supplies. The source material describes mounting paranoia and divisions among the crew as key elements of its premise.
A Dread Central report said an adaptation was in the works before the newer report identified Sony’s involvement and the principal creative team. The later report, attributed to The Hollywood Reporter, names Kusama as director and Manfredi and Hay as screenwriters. It also identifies Derrickson, Cargill and Cheng as producers. No additional details in the supplied reporting establish a production timeline or a direct link between the film and any other Sony project.
Kusama, Manfredi and Hay previously collaborated on The Invitation. That prior partnership is relevant because it shows the director and writers have worked together on a horror film before. It does not confirm that the new adaptation will share that film’s style or structure.
“Karyn Kusama has been tapped to direct the adaptation from a script by Matt Manfredi and Phil Hay.”
— The Hollywood Reporter, as cited by Dread Central
Film Plans Still Undetailed
No cast members or release date have been announced in the supplied reporting, and the film’s production start, budget and distribution plans are not specified. It is also unclear whether the adaptation will retain the game’s plot in full, change character details or add material for a feature-length story.
The sources identify the director, screenwriters and producers, but do not provide statements from Sony, Kusama or Derrickson describing their creative plans. The reported Steam rating and platform availability concern the game; they do not establish how the film will be received or how closely it will follow the source material.
Awaiting Cast and Production News
The next reported milestones to watch for are casting announcements, production dates and further information about the screenplay and release plans. None is confirmed in the available source material. Until the studio or the filmmakers provide those details, the project’s status is best described as a film adaptation in development with a director, writers and producers attached.
Any later announcement may clarify whether the film follows the game’s five-person crew and asteroid-crash premise directly, and when filming could begin. For now, readers have the core creative appointments and game premise, but not a confirmed schedule for the film’s arrival.
Key Questions
Who is directing the Mouthwashing adaptation?
Karyn Kusama is set to direct, according to The Hollywood Reporter as cited by Dread Central.
Is Scott Derrickson directing the film?
No. The report says Derrickson is producing the adaptation with C. Robert Cargill and Vince Cheng through Crooked Highway. Kusama is directing.
Who is writing the screenplay?
Matt Manfredi and Phil Hay are writing the screenplay. They previously worked with Kusama on The Invitation.
What is Mouthwashing about?
The game follows five crew members aboard the freighter Tulpar after it crashes on an asteroid. Isolation, limited supplies and growing paranoia strain the group.
When will the Mouthwashing movie be released?
No release date has been reported. The available information does not give a production start date or casting details either.
Source: dreadcentral.com
