Margot Robbie talks I, Tonya Oscar nomination

It's been five years since Margot Robbie burst onto the big screen in The Wolf of Wall Street - now, she's landed her first Oscar nomination for I, Tonya.

The 27-year-old Australian jetted home from LA for the Sydney premiere this week, but it was the after-party she'll remember for the rest of her life.

"It was wild, it was one of the best moments of my life," says Robbie.

"We were still out, from the premiere. So all my friends and family had just seen the film for the first time. So we were having our own little after-party - drinking, dancing, chatting, having so much fun.

"Then just as I was about to go to bed, the nominations started coming through... someone plugged the phone into the DJ deck, so it went around the whole room, so loudly. 'And Best Actress, Margot Robbie', and then everyone in the room just started screaming, and crying."

Robbie doesn't just take on the role of Tonya Harding in the film, she's also one of the producers under the banner of her Lucky Chap production company - which makes all the awards love even more gratifying.

"Every film is a hustle to get made, but an indie film - it's a small miracle when they get made," she says.

"This one in particular - people looked at it and said, 'How the hell are you going to make this?' We weren't going to get a lot of money for it, because it's so risky and unconventional. We had to portray the Olympics, it was a period piece, it spanned four decades... it was a very ambitious script.

"I think because we were all such young producers, we had enough blind optimism to think we could actually do it."

Although Tonya Harding was one of the biggest news stories of the 1990s, her story is even more timely than the filmmakers imagined.

"When Steven (Rogers) wrote the script, Trump wasn't president, so there wasn't such a clear divide in the US. Classism was still an issue, but it's even more relevant now," Robbie says.

"Abused women have become so sadly relevant and brought into the light over the last few of months."

I, Tonya doesn't focus only on the assault of Nancy Kerrigan - it tells the story of Harding's life in a way Robbie believes everybody can connect with.

"This is a very human story. You've got people who feel lost, they're frustrated, disenfranchised, they're all coming up with their own version of the truth to try and warrant their behaviour," says Robbie.

"To begin with you might be like, 'I don't really know anything about ice skating, I don't really care about that stuff', or, 'I'm not from that part of America, how is this relevant to me?'. But then you delve into this story, you start relating on levels you never expected you could. You start thinking of the big picture - is this something our society needs to identify and deal with?

"It's important to tell stories that are entertaining, but to tell stories that are entertaining in a meaningful way - that's what makes the job worthwhile."

I, Tonya opened in New Zealand cinemas today.

Newshub.