The Coffin of Andy and Leyley

The Coffin of Andy and Leyley is an upcoming 2029 adult animated psychological black comedy-horror film co-directed by Hereditary 's Ari Aster and Hazbin Hotel 's Vivienne "VivziePop" Medrano. The film was based on a video game of the same name developed under the pseudonym Nemlei, who also credited as a writer in the film.

It was distributed by A24, alongside several production companies including Lars von Trier's Zentropa Entertainment, Knudsen and Aster's Square Peg, and VivziePop's SpindleHorse Toons. It will be slated to release on Halloween in 2029.

Premise
Divided into three chapters. The siblings, Andrew and Ashley Graves, escaped from the apartment and joined together to an unexpected journey, but for Andrew, due to his sister's manipulation and negligence over his head, dealt himself over the toxic relationship with her during the journey.

Cast
Several actors as other unnamed roles were undisclosed.
 * Timothée Chalamet as Andrew "Andy" Graves, Ashley's codependent older brother.
 * Ella Purnell as Ashley "Leyley" Graves, Andrew's codependent younger sister.
 * Jonathan Freeman as The Entity, the main antagonist.
 * Toni Collette as Mrs. Graves, Andrew and Ashley's mother.
 * David Dastmalchian as Mr. Graves, Andrew and Ashley's father.
 * Jeremy Davies as Warden Malcom
 * Mallory Bechtel as Lady in the Apartment
 * Gabriel Byrne as Cult Leader
 * Jill Harris as Nina and Julia

Development and themes
Following the success of the video game in 2024, Nemlei will serve as a screenwriter after possibility of adapting The Coffin of Andy and Leyley into a film. In spite of multiple endings from the game, Nemlei supervises the "incest" and "sane" routes altogether into a single plot to make more canonical for the film than the bad ones.

The film's international co-production with United States and Denmark, the story follows a codependent siblings joined together in an unexcepted journey after escaped from the apartment. Like the video game, The Coffin of Andy and Leyley deals with the themes of codependency, sibling teamwork, and evil against evil; other controversial subject matters such as abuse, cannibalism, incest, and manipulation.

Rating
The film was rated "R" by MPA for "language throughout, some drug use, strong bloody violence, and disturbing content including cannibalism and incestuous sexuality".