DiCaprio is set to play Rick Dalton, a former star of a television western.
As Deadline notes, the film will be similar to Tarantino's cult classic Pulp Fiction, as its set in 1969 Los Angeles, aka "the height of hippy Hollywood". How this all ties together is still something of a mystery. Stay tuned as more on Once Upon A Time In Hollywood becomes available. DiCaprio's character just happens to live next door to actress Tate. Both are trying to make it in Hollywood. She will portray slain actress Sharon Tate (Valley of the Dolls).
"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 seven years old", he said.More news: Indian Wells: Serena Williams 'should have been top seed' - Halep
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"I'm very excited to tell this story of an LA and a Hollywood that don't exist anymore".
Tarantino had met with Robbie back in July to talk to her about playing Tate in his upcoming film, but that was before she had been nominated for an Oscar for I, Tonya. She'll also be reuniting with her Wolf of Wall Street movie-husband Leonardo DiCaprio. She now has the offer and negotiations are underway to make it a reality.
With Robbie a near lock to join Pitt and DiCaprio, the next major bit of casting will be the actor selected to play controversial filmmaker Roman Polanski. The Sony Pictures film will be released in theaters on August 9, 2019. It's the first film Tarantino will shoot since severing ties with the Weinstein Company.