DiCaprio also posted a "first look" image of himself and Pitt in character back in June.
In the photo, the Australian actress wears a white skirt, black turtleneck and white boots as she stares into the camera, with her blonde locks draping down her sweater.
Sharon Tate was murdered while pregnant by the Manson family members.
Leonardo DiCaprio and Brad Pitt also have roles as a former TV star and his longtime stunt double.
Sharon's sister, Debra Tate, was initially against the film believing it to be exploitative but has since met with Tarantino who reassured her of the film's content and how the late actress would be depicted.
However, she has since discussed the film with Tarantino and his team, and given it her full support. "I'm very excited to tell this story of an L.A. and a Hollywood that don't exist anymore".
The film was originally slated for release in the US on the 50th anniversary of the LaBianca murders, one day after Tate was killed, but has since been moved to July 26, 2019. But considering that Rick's neighbor is Sharon Tate, the wife of famous (and infamous) film director Roman Polanski, their struggles may be short-lived - before they get a whole lot worse in a much bigger way.
The all-star cast includes Burt Reynolds, Timothy Olyphant, Michael Madsen, Tim Roth, Damian Lewis, Luke Perry, Emile Hirsch, Dakota Fanning, James Marsden and Al Pacino. Sharon was murdered by the notorious Manson family in 1969 at 26 years old.