Richard Kelly, writer-director of the 2001 cult classic Donnie Darko, is returning to the world of the film with a sequel book, The Philosophy of Time Travel, to be released later this year. The news, first reported by Variety, marks the official continuation of a story that has puzzled and intrigued audiences for 25 years.

The Sequel Book

The approximately 800-page novel will be published by Range Literary Publishing and is expected to arrive in the fourth quarter, around the film's 25th anniversary. The book is subtitled "The Epic Sequel to the Motion Picture Donnie Darko" and picks up 14 months after Donnie's death, exploring the aftereffects of the film's events. It is told through found documents, including material written from the perspectives of Donnie's parents, Rose and Eddie, as the characters try to understand what happened to Donnie, the tangent universe, and the strange events they collectively experienced.

A Long-Gestating Story

Kelly has reportedly spent the past decade writing the book, but he has been working on a potential sequel for more than 20 years. In an interview with Variety, Kelly explained that the story grew too large and complicated to easily bring to the screen. "The story got bigger and bigger and bigger," he said, "and I needed to go back in time and away from the sequel, and tell the story of what happens in the 14 months after Donnie's death, like immediately after his death, because there's so much essential information in that section."

Franchise Aspirations

Kelly's long-term plan is for the book to serve as the first step toward a larger series of sequels. He hopes The Philosophy of Time Travel can eventually be adapted into an animated or motion-capture film, followed by a live-action movie set 28 years after the original. "I want to reunite the original cast, and I want to take it onto a gigantic scale, and that takes time, and it has a price tag," Kelly told Variety. "It's this big, gigantic, unwieldy thing that I have to sort of wrestle into submission. But in my mind, that's what it should be."

Kelly has expressed interest in reuniting the original cast, including Jake Gyllenhaal, Jena Malone, Drew Barrymore, and Maggie Gyllenhaal. He has not yet approached the cast about his grand ideas, but he has been in touch with them over the years and hopes the book becomes his pitch to them.

The Film's Legacy

Donnie Darko initially struggled at the box office after its 2001 release but later found a devoted audience through home video. The film currently holds an 88% critics score on Rotten Tomatoes and a 71 Metascore. The book is available to pre-order now, coinciding with the film's 25th anniversary.