TL;DR
Sony Pictures has acquired the film rights to Mouthwashing, the 2024 indie horror game, and is developing an adaptation. Karyn Kusama is set to direct, with Scott Derrickson and C. Robert Cargill among the producers; Matt Manfredi and Phil Hay will write the script. No release date, cast or production schedule has been announced.
Sony Pictures has acquired the film rights to Mouthwashing, the 2024 indie horror game, and has a feature adaptation in development, according to The Hollywood Reporter, as cited by FANGORIA. Karyn Kusama is set to direct, while Scott Derrickson will produce; Matt Manfredi and Phil Hay are writing the screenplay.
The project brings together filmmakers with prior horror credits. Kusama directed Jennifer’s Body and The Invitation, the latter written by Manfredi and Hay. Derrickson directed The Black Phone and Sinister, and his frequent collaborator C. Robert Cargill is also attached as a producer for Crooked Highway. Vince Cheng is named as another producer.
The rights were acquired from Wrong Organ, the game’s developers, and publisher Critical Reflex. The report identifies Sony as the studio behind the project, but does not provide a release date, production start, casting, or details about how closely the film will follow the game’s story. The adaptation is described as being in the works, not as a completed or scheduled film.
Released in 2024, Mouthwashing is a first-person psychological horror game set aboard the spaceship Tulpar. Players experience events involving a stranded crew after a mysterious crash and a badly injured captain, Curly. FANGORIA reports that the game earned a nomination for a Chainsaw Award and drew strong responses from critics and fans.
A Horror Game Gets Studio Backing
The deal moves Mouthwashing from a successful indie game into development at a major film studio, with a director and screenwriters already attached. That makes the adaptation a notable development for fans, while the high-profile creative team may also bring the game to viewers who have not played it.
It also places the property within a growing overlap between horror games and film projects. But an acquisition and creative attachments do not confirm that production will proceed on a particular timetable. Without a production date or casting announcement, the adaptation remains an early-stage project whose final form is not yet known.
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From 2024 Game to Film Project
Mouthwashing was released in 2024 by Wrong Organ and published by Critical Reflex. Its low-poly visual style and confined spaceship setting frame a story of isolation, psychological pressure and uncertainty about what caused the crash. The source report describes the game as drawing on science-fiction horror influences including Alien, Event Horizon, Sunshine and The Thing; those comparisons are editorial context, not a confirmed description of the film’s approach.
FANGORIA’s report says it had previously named the game among horror titles it thought suited a film adaptation. The current development is distinct from that earlier assessment: Sony’s rights acquisition and the named filmmakers are the concrete news, while the adaptation’s creative direction beyond those attachments has not been detailed.
“The report names Karyn Kusama as director and Matt Manfredi and Phil Hay as the screenwriters.”
— The Hollywood Reporter, as cited by FANGORIA
Production Plans Remain Undisclosed
No release date, cast, filming schedule or production start is provided in the report. The project is described as in development, but the available information does not establish when it might move into production or reach theaters.
Details about the screenplay are also unavailable. It is not clear whether the adaptation will closely follow the game’s plot, change its perspective, or introduce new characters or storylines. The report does not include direct comments from Sony, Kusama, Derrickson, the writers, or the game’s creators explaining their plans.
Awaiting Script and Casting News
The next public updates may clarify the film’s development stage, screenplay direction, casting and production timetable. Until those details are announced, the confirmed information is limited to Sony’s rights acquisition and the project’s attached director, writers and producers.
Key Questions
Is a Mouthwashing movie officially in development?
Yes. The source report says Sony Pictures acquired the film rights and is developing an adaptation.
Who is directing the Mouthwashing adaptation?
Karyn Kusama, whose credits include Jennifer’s Body and The Invitation, is attached to direct.
Who is writing and producing the film?
Matt Manfredi and Phil Hay are writing the screenplay. Scott Derrickson, C. Robert Cargill and Vince Cheng are named as producers.
When will the Mouthwashing movie be released?
No release date or production schedule has been announced in the report.
Will the film follow the game’s story?
The report gives no details about the screenplay’s plot, so it is not yet clear how closely the film will follow the game.
Source: fangoria.com
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