Margot sat down with news.com.au to promote her latest film, Peter Rabbit, and spoke about her strong Aussie accent and the fact the producers didn't exactly love it.
"When I was on Neighbours they hired a dialect coach to make me sound less Australian even though I was still playing an Australian character," she said.
The 27-year-old debuted on Neighbours in 2008 as Donna Freedman, playing the teen until 2011 when she left to make the big move to Hollywood.
Margot was only 17-years-old when she was cast in the popular Aussie drama. According to The Sydney Morning Herald, the then teenager was relentless in her pursuit to join the show, constantly contacting Neighbours casting director, Jan Russ.
"I called her every day and she finally let me come in," Margot told SMH. "She hadn't realised I was so young and when she met me she said, 'Hang on a second, we're casting for a 17-year-old girl at the moment.' So that's how it happened."
Believing her audition had gone terribly Margot did what anyone would, and took off on an overseas holiday to Canada.
"I went to Canada to go snowboarding with my boyfriend," she told the Herald Sun.
"I didn't give it a moment's thought. I thought I'd done a really bad audition, so I just walked out and thought, 'Oh well'.
"But you know, you get one phone call and it changes your life. We'd been in Canada for two days and I got that call and I sort of said, 'Bye, I guess I'm leaving for home'. But I did manage one day of snowboarding."
After her three years on Ramsay Street Margot took to Hollywood and landed her breakout role opposite Leonardo DiCaprio in The Wolf Of Wall Street.
She's since solidified her place as an iconic actress with ten films in five years and most recently an Oscar nomination for her role in I, Tonya.