All of Tarantino's past work has been distributed by The Weinstein Company and, well...nobody wants that guy's name stuck on the front of their movie these days, so Quentin has shopped the film around Hollywood.
According to Deadline, the 43-year-old Oscar victor nabbed one of the "two meaty male roles" circled by Tom Cruise and Brad Pitt, which was referred to only as an 'aging actor'. So at the very least, the movie will feature some of the murder victims, if not the actual murders.
Several big-name stars are still circling the secretive project, with Margot Robbie and Tom Cruise being eyed for big roles.
Tarantino has obviously cast DiCaprio before - as the frothing slave owner Calvin Candie in the 2012 film Django Unchained - but that wasn't the first film he wanted DiCaprio for.
Furthermore, the director has famously said he'll only ever helm ten movies in his career, and as this will be his ninth, the film is now being referred to as #9 in promotional circles. Should DiCaprio join the project, it will be his first film since starring in 2015's "The Revenant" directed by Alejandro Gonzalez Inarritu which earned him a Best Actor award at the 2016 Oscars.
The release date has been set for August 9, 2019 - the 50th anniversary of Tate's death.
The pair previously worked together on the phenomenally popular, The Wolf of Wall Street.