Quentin Tarantino is set to turn his Oscar-nominated film Once Upon a Time in Hollywood into a novel.

According to Variety, the novel will be under a new two-book deal that the 57-year-old acclaimed filmmaker signed with publisher HarperCollins.

The book, which will be published in the summer of 2021, will not be a re-telling of the movie's story but it will amplify the original story and give it a "fresh playful and shocking departure of the film".

The hit movie, which was released in 2019, centres on the Manson Family murders in the late 1960s in Los Angeles, telling the story of Rick Dalton (DiCaprio), an actor in a western TV series, and his stunt double Cliff Booth (Pitt), who are trying to make a name for themselves in the film industry.

It also stars Margot Robbie as Sharon Tate, a Hollywood actress married to director Roman Polanski who was one of five people murdered by the cult led by Charles Manson in August 1969.

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The second book is entitled Cinema Speculation and is described by the publisher as a "deep dive into the movies of the 1970s, a rich mix of essays, reviews, personal writing, and tantalising 'what if's', from one of cinema's most celebrated filmmakers, and its most devoted fan."

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In a statement, Tarantino said: "In the 70s movie novelisations were the first adult books I grew up reading.

"And to this day I have a tremendous amount of affection for the genre. So as a movie-novelisation aficionado,

"I'm proud to announce Once Upon A Time in Hollywood my contribution to this often marginalised, yet beloved sub-genre in literature.

"I'm also thrilled to further explore my characters and their world in a literary endeavour that can (hopefully) sit alongside its cinematic counterpart."

Once Upon a Time in Hollywood received 10 nominations at the 92nd Academy Awards, including Best Picture, and won Best Supporting Actor (Pitt) and Best Production Design. It also won Best Motion Picture – Musical or Comedy at the 77th Golden Globe Awards.