The Australian actress is due to play the ill-fated star who was murdered by the Manson family while pregnant with husband Roman Polanski's baby back in the 70s.
Tate's sister, Debra, has previously spoken out against Tarantino's film, calling it "exploitative" and accusing it of "celebrating the killers" in an interview with Deadline. Wearing a black turtleneck, white mini skirt and white go-go boots, Robbie is the spitting image of the late star.
Robbie shared the photo on Instagram with the simple caption, "First look".
This is the second official image we've seen from the hotly-anticipated film after June's first look at Brad Pitt and Leonardo DiCaprio as the characters of Cliff Booth and Rick Dalton.
However, she has since discussed the film with Tarantino and his team, and given it her full support.
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The Croatian was pictured doing fitness work at the club's Melwood training base on his first day back from holiday after the World Cup.
"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". The two are both struggling to make it in the entertainment industry "at the height of hippie Hollywood", as Tarantino describes. I'm very excited to tell this story of an LA, and a Hollywood that doesn't exist anymore.
The film will be released in the United Kingdom on 26 July 2019, created to coincide with the 50th anniversary of the Manson-LaBianca murders and Tate's death. However, Sharon Tate was famously one of the victims of the murders. It's set to be released on July 26, 2019.