All the details of Quentin Tarantino's new movie, which stars Brad Pitt, Leonardo DiCaprio, and Margot Robbie

The first trailer and poster arrived this week. The first poster for "Once Upon a Time in Hollywood."Sony

The first poster for the movie dropped on Tuesday, followed by the first trailer on Wednesday. The trailer showcases the movie's 1969 setting, as Pitt and DiCaprio's characters look to make a comeback in Hollywood.

Watch the trailer here.

The film takes place in "Los Angeles in 1969, at the height of hippy Hollywood." Brad Pitt and Quentin Tarantino.Getty Images

Tarantino described "Once Upon a Time in Hollywood" in a statement last year, calling it, "a story that takes place in Los Angeles in 1969, at the height of hippy Hollywood. The two lead characters are Rick Dalton (Leonardo DiCaprio), former star of a Western TV series, and his longtime stunt double Cliff Booth (Brad Pitt). Both are struggling to make it in a Hollywood they don't recognize anymore. But Rick has a very famous next-door neighbor ... Sharon Tate."

In July 2017, early reports of the film described its script as focused on the murder of actress Sharon Tate by Charles Manson's followers.

While Tarantino's February statement mentions Sharon Tate as a player in the movie, Tarantino previously said that the film would not center on Manson but on the year 1969. In fact, the trailer makes no overt mention of the Manson family.

It has been five years in the making. Rich Polk/Getty

Tarantino said last year that he had been working on the script for the film for half a decade.

"I've been working on this script for five years, as well as living in Los Angeles County most of my life, including in 1969, when I was 7 years old," he said. "I'm very excited to tell this story of an LA and a Hollywood that don't exist anymore. And I couldn't be happier about the dynamic teaming of DiCaprio and Pitt as Rick and Cliff."

Margot Robbie is playing Sharon Tate. Margot Robbie and the late Sharon Tate.Getty; AP

"Tarantino is one of my bucket-list directors," Robbie told IndieWire in April. "As long as I can remember, I've been a huge Tarantino fan."

Robbie was on the initial shortlist of cast members Tarantino had reportedly approached for the film, including Pitt and DiCaprio, Samuel L. Jackson, Tom Cruise, and Jennifer Lawrence.

The rest of the supporting cast is stellar. Andreas Rentz/Getty

Damian Lewis, Dakota Fanning, Emile Hirsch, Kurt Russell, Timothy Olyphant, Scoot McNairy, Al Pacino, and longtime Tarantino collaborators Tim Roth and Michael Madsen are also supporting members of the cast.

Lewis will play the late Hollywood star Steve McQueen in the film, Fanning will star as Manson family member Lynette "Squeaky" Fromme, and Pacino is playing DiCaprio's character's agent.

It has "one of the most amazing screenplays," according to DiCaprio DiCaprio in "Django Unchained."Miramax

Leonardo DiCaprio, who starred as a villainous slave owner in Tarantino's Oscar-winning film "Django Unchained," had high praise for Tarantino's latest script at CinemaCon in April.

"It's hard to speak about a film that we haven't done yet, but I'm incredibly excited ... to work with Brad Pitt, and I think he's going to transport us," DiCaprio said. "I'm a huge fan of 'Singin' in the Rain' — movies about Hollywood. As an LA native, having read the script, it's one of the most amazing screenplays. We are going to do our best job to make it fantastic."

Sony Pictures motion-picture group chairman Tom Rothman also said at the the event, "It's the best screenplay that I have had the privilege to read."

Thomson Reuters

Tarantino chose Sony as the distributor for "Once Upon a Time in Hollywood."

Deadline reported that Sony beat out a list of competitors, including Fox, Universal, Warner Bros., Lionsgate, and Annapurna, and that Tarantino was impressed with Sony head Tom Rothman's film knowledge.

Tarantino's previous films were released by Miramax and later The Weinstein Co. Both were companies of the film mogul Harvey Weinstein, who resigned from The Weinstein Co. after bombshell reports accused him of sexual harassment and assault in 2017.

It was set to be released on the 50th anniversary of the Manson family murders, but Sony has moved it up by two weeks. Manson family women.Uncredited/AP

Despite Tarantino's insistence that the film would not center on Charles Manson, "Once Upon a Time in Hollywood" was initially set for release on August 9, 2019, the 50th anniversary of the Manson family murders.

The Hollywood Reporter reported that the film's release was set to coincide with the anniversary of the Manson family's killings of Sharon Tate and six other people.

However, Sony Pictures moved the release date for the film up by two weeks to July 26, 2019.