Quentin Tarantino has completed the cast for his forthcoming tenth feature, Once Upon a Time in Hollywood.

Set in 1969 Los Angeles, the film will follow the struggling actor Rick Dalton (Leonardo DiCaprio), a former star of a Western TV series, and his longtime stunt double Cliff Booth (Brad Pitt). The pair end up tapping up their famous next-door neighbour – Sharon Tate (Margot Robbie) – for a helping hand.

The Kill Bill director has assembled his biggest cast yet, with a mix of Hollywood A-list stars and recognisable faces from some of the best television shows of the past decade (see: Westworld, The Leftovers, Homeland).

Originally, the project was reported to be based on the Manson Family Murders which saw Charles Manson’s followers brutally kill five people, including Tate, at his instruction.

Instead, these killings will serve as a backdrop to Once Upon a Time in Hollywood, with a number of involved parties – including film director Roman Polanski (Tate’s husband), the hairdresser Jay Sebring, and Manson himself – all set to appear.

25 new films to look out for in 2018 that aren't sequels Show all 25 1 /25 25 new films to look out for in 2018 that aren't sequels 25 new films to look out for in 2018 that aren't sequels The Meg Released: 10 August Director: Jon Turteltaub Cast: Jason Statham, Ruby Rose, Rainn Wilson After escaping an attack by what he claims was a 70-foot shark, Jonas Taylor must confront his fears to save those trapped in a sunken submersible. 25 new films to look out for in 2018 that aren't sequels Skyscraper Released: 12 July Director: Rawson Marshall Thurber Cast: Dwayne Jonson, Neve Campbell, Chin Han FBI Hostage Rescue Team leader Will Sawyer is framed for setting fire to the tallest building in the world and must rescue his family who are trapped inside - at the top. 25 new films to look out for in 2018 that aren't sequels First Reformed Released: 12 July Director: Paul Schrader Cast: Ethan Hawke, Amanda Seyfried, Cedric the Entertainer A priest of a small congregation in upstate New York grapples with mounting despair brought on by tragedy, worldly concerns and a tormented past. 25 new films to look out for in 2018 that aren't sequels Disney's Christopher Robin Released: 17 August Director: Marc Forster Cast: Ewan McGregor, Hayley Atwell, Jim Cummings (voice) A working-class family man, Christopher Robin, encounters his childhood friend Winnie-the-Pooh, who helps him to rediscover the joys of life. 25 new films to look out for in 2018 that aren't sequels The Happytime Murders Released: 17 August Director: Brian Henson Cast: Melissa McCarthy, Elizabeth Banks, Maya Rudolph When the puppet cast of an '80s children's TV show begins to get murdered one by one, a disgraced LAPD detective-turned-private eye puppet takes on the case. 25 new films to look out for in 2018 that aren't sequels BlacKkKlansman Released: 24 August Director: Spike Lee Cast: John David Washington, Adam Driver, Topher Grace The film, produced by Get Out's Jordan Peele, is set in the early 70s and follows Washington's Ron Stallworth who, after becoming the first African-American detective on the Colorado Springs Police Department, sets out to infiltrate and expose the Ku Klux Klan while posing as a racist extremist. 25 new films to look out for in 2018 that aren't sequels Mile 22 Released: 27 August Director: Peter Berg Cast: Mark Wahlberg, Lauren Cohan, John Malkovich An elite American intelligence officer, aided by a top-secret tactical command unit, tries to smuggle a mysterious police officer with sensitive information out of the country. 25 new films to look out for in 2018 that aren't sequels The Miseducation of Cameron Post Released: 31 August Director: Desiree Akhavan Cast: Chloë Grace Moretz, John Gallagher Jr., Jennifer Ehle In 1993, a teenage girl is forced into a gay conversion therapy center by her conservative guardians. 25 new films to look out for in 2018 that aren't sequels American Animals Released: 7 September Director: Bart Layton Cast: Evan Peters, Blake Jenner, Ann Dowd Four young men mistake their lives for a movie and attempt one of the most audacious heists in U.S. history. 25 new films to look out for in 2018 that aren't sequels City of Lies Released: 7 September Director: Brad Furman Cast: Johnny Depp, Forest Whitaker, Rockmond Dunbar The film tells the story of American hero and former LAPD detective, Russell Poole as he works the 1997 murder cases of rappers Tupac Shakur and The Notorious B.I.G. 25 new films to look out for in 2018 that aren't sequels A Simple Favour Released: 21 September Director: Paul Feig Cast: Blake Lively, Linda Cardellini, Anna Kendrick A rare thriller from Bridesmaids director following a mummy vlogger who seeks to uncover the truth behind her best friend Emily's sudden disappearance from their small town. 25 new films to look out for in 2018 that aren't sequels Fighting With My Family Released: 28 September Director: Stephen Merchant Cast: Florence Pugh, Lena Headey, Dwayne Johnson A former wrestler and his family make a living performing at small venues around the country while his kids dream of joining World Wrestling Entertainment. Lionsgate UK 25 new films to look out for in 2018 that aren't sequels The House with a Clock in Its Walls Released: 28 September Director: Eli Roth Cast: Cate Blanchett, Jack Black, Kyle MacLachlan A young orphan named Lewis Barnavelt aids his magical uncle in locating a clock with the power to bring about the end of the world. 25 new films to look out for in 2018 that aren't sequels A Star Is Born Released: 5 October Director: Bradley Cooper Cast: Lady Gaga, Bradley Cooper, Sam Elliott A musician helps a young singer and actress find fame, even as age and alcoholism send his own career into a downward spiral. 25 new films to look out for in 2018 that aren't sequels Venom Released: 5 October Director: Ruben Fleischer Cast: Tom Hardy, Michelle Williams, Riz Ahmed When Eddie Brock acquires the powers of a symbiote, he will have to release his alter-ego "Venom" to save his life. Sony 25 new films to look out for in 2018 that aren't sequels Bad Times at the El Royale Released: 12 October Director: Drew Goddard Cast: Chris Hemsworth, Dakota Johnson, Nick Offerman Seven strangers, each with a secret to bury, meet at Lake Tahoe's El Royale, a rundown hotel with a dark past. Over the course of one fateful night, everyone will have a last shot at redemption - before everything goes to hell. 25 new films to look out for in 2018 that aren't sequels First Man Released: 12 October Director: Damien Chazelle Cast: Ryan gosling, Claire Foy, Kyle Chandler A look at the life of the astronaut, Neil Armstrong, and the legendary space mission that led him to become the first man to walk on the Moon on July 20, 1969. 25 new films to look out for in 2018 that aren't sequels Mowgli Released: 19 October Director: Andy Serkis Cast: Rohan Chand, Benedict Cumberbatch (voice), Cate Blanchett (voice) A human child raised by wolves must face off against a menacing tiger named Shere Khan, as well as his own origins in this live-action adaptation of Rudyard Kipling's novel. 25 new films to look out for in 2018 that aren't sequels Bohemian Rhapsody Released: 24 October Director: Bryan Singer, Dexter Fletcher Cast: Rami Malek, Joseph Mazzello, Lucy Boynton A chronicle of the years leading up to Queen's legendary appearance at the Live Aid (1985) concert in 1985. 25 new films to look out for in 2018 that aren't sequels Overlord Released: 25 October Director: Julius Avery Cast: Wyatt Russell, Iain De Caestecker, Pilou Asbæk The story of two American soldiers behind enemy lines on D Day that may or may not be another film set in JJ Abrams’ Cloverfield world. 25 new films to look out for in 2018 that aren't sequels Widows Released: 9 November Director: Steve McQueen Cast: Viola Davis, Elizabeth Debicki, Liam Neeson Set in contemporary Chicago, amidst a time of turmoil, four women with nothing in common except a debt left behind by their dead husbands' criminal activities, take fate into their own hands, and conspire to forge a future on their own terms. 25 new films to look out for in 2018 that aren't sequels White Man Rick Released: 7 December Director: Yann Demange Cast: Jennifer Jason Leigh, Matthew McConaughey, Eddie Marsan The story of teenager Richard Wershe Jr., who became an undercover informant for the FBI during the 1980s and was ultimately arrested for drug-trafficking and sentenced to life in prison. 25 new films to look out for in 2018 that aren't sequels Mortal Engines Released: 14 December Director: Christian Rivers Cast: Hugo Weaving, Frankie Adams, Stephen Lang Many years after the "Sixty Minute War," cities survive a now desolate Earth by moving around on giant wheels attacking and devouring smaller towns to replenish their resources. 25 new films to look out for in 2018 that aren't sequels Alita: Battle Angel Released: 26 December Director: Robert Rodriguez Cast: Rosa Salazar, Jennifer Connelly, Ed Skrein An action-packed story of one young woman's journey to discover the truth of who she is and her fight to change the world. 25 new films to look out for in 2018 that aren't sequels Holmes and Watson Released: 26 December Director: Etan Cohen Cast: Will Ferrell, John C. Reilly, Ralph Fiennes A humorous take on Arthur Conan Doyle's classic mysteries featuring Sherlock Holmes and Doctor Watson. Columbia/Kobal/REX/Shutterstock

Other famous figures to feature as characters will include Steve McQueen, Bruce Lee and US personality Allen Kincade.

Following months of speculation over who could play Manson and Polanski, it was confirmed in August that relative unknowns Damon Herriman (Justified, Top of the Lake) and Polish actor Rafal Zawierucha will assume the respective roles. It was originally reported that James Marsden was in the running for Manson; he’ll appear in an undisclosed role instead.

For the film’s younger roles, Tarantino has cast the offspring of several renowned film stars: Maya Hawke – daughter of Ethan Hawke and his former collaborator Uma Thurman – will star as Rumer Willis: Bruce Willis and Demi Moore’s daughter.

Margaret Qualley, whose mother is Andie MacDowell, will play a character known as Kitty Kat – the nickname Vincent Vega (John Travolta) gives Thurman’s Mia Wallace in Pulp Fiction.

Once Upon a Time in Hollywood is scheduled to be released 26 July by Sony Pictures, one week earlier than the 50th anniversary of the Tate-LaBianca murders.

The full cast list for the new Tarantino film is as follows:

Leonardo DiCaprio as Rick Dalton

- An actor who starred in the Western television series Bounty Law from 1958 to 1963. His attempt to transition to movies did not work out and in 1969, he is struggling, guesting on other people’s shows while contemplating going to Italy – which has become a hotbed for low-budget Westerns. He is neighbours with Sharon Tate.

Brad Pitt as Cliff Booth

- Rick’s longtime stunt double and close friend.

Margot Robbie as Sharon Tate

- A pregnant actress married to Roman Polanski, who was murdered in her home by followers of Charles Manson.

Burt Reynolds as George Spahn

- An 80-year-old near-blind man who rented his LA ranch out to be used as the location for Westerns. Manson convinced Spahn to allow him and his followers to live on the ranch, in the months before they murdered Sharon Tate and six others. In exchange for rent, Manson coerced his female followers into hopping into bed with the ranch owner and serving as his seeing eye guides.

Damian Lewis as Steve McQueen

- An actor and friend of Jay Sebring, who was invited by him to the home of Sharon Tate for a dinner party, but he was unable to show up.

Luke Perry as Wayne Maunder

- An actor who co-starred on the western television series Lancer.

Damon Herriman as Charles Manson

Emile Hirsch as Jay Sebring

- A Hollywood hairstylist and friend of Sharon Tate who was murdered in the home of Tate by followers of Charles Manson.

Dakota Fanning as Lynette “Squeaky” Fromme

- A member of the infamous Manson family who obtained her nickname whilst living on George Spahn’s ranch.

Clifton Collins Jr. as Ernesto “The Mexican” Vaquero

Keith Jefferson as Land Pirate Keith

Nicholas Hammond as Sam Wanamaker

- an actor-director who, in 1969, began a campaign to rebuild the Shakespeare’s Globe in London.

Al Pacino as Marvin Shwarz

- Rick Dalton’s agent.

Scoot McNairy as Business Bob Gilbert

- A fictional cowboy character on Bounty Law.

Spencer Garrett as Allen Kincade

- The television personality and interviewer to Hollywood’s elite.

Mike Moh as Bruce Lee

- The international actor-stuntman who choreographed fight scenes for The Wrecking Crew, which starred Sharon Tate. Following her murder, he attended her funeral and was also privately investigated.

Lena Dunham as Catherine Share:

- A member of the Manson family who was not directly involved with the Tate murders.

Austin Butler as Charles “Tex” Watson:

- A central member of the Manson family who, alongside three other members, was directly involved in the Tate murders.

Rafal Zawierucha as Roman Polanski:

- An acclaimed filmmaker and husband of Tate, who was in Europe working on a film when Tate was murdered.

Samantha Robinson as Abigail Folger:

- Wojciech Frykowski‘s lover, as well as heiress to the Folger coffee fortune. She was murdered in the home of Sharon Tate by followers of Charles Manson.

Rumer Willis as Joanna Pettet

- A famous English actor

Dreama Walker as Connie Stevens

- An American actor who starred in Hawaiian Eye

Maya Hawke as Flower Child

Margaret Qualley as Kitty Kat

Victoria Pedretti as Lulu

Madisen Beaty as Katie

Lorenza Izzo as Francesca Cappuci

Eddie Perez as Land Pirate Eddie

Maurice Compte as Land Pirate Mao

Costa Ronin as Voytek Frykowski

In undisclosed roles:

Zoë Bell, Tim Roth, Michael Madsen, Kurt Russell, Timothy Olyphant, James Marsden, Julia Butters, James Remar, Martin Kove, Brenda Vaccaro, Nichole Galicia, Craig Stark, Marco Rodríguez, Ramón Franco, Danny Strong, Sydney Sweeney, Mikey Madison and Raul Cardona