Margot Robbie has admitted she thinks her friends are prettier than her.

The actress - who wooed Leonardo DiCaprio in The Wolf Of Wall Street - revealed to Vanity Fair magazine that she doesn't think of herself as a great beauty despite her sex symbol status.

"In my big group of girlfriends at home, I am definitely not the best-looking," said the Aussie star.

"I did not grow up feeling like I was particularly attractive. You should have seen me at 14, with braces and glasses, gangly and doing ballet!"

Margot, 24, won countless fans with her dazzling performance in Martin Scorsese's film, with one scene seeing her bare all, but said she "cannot take full credit" for her good looks on the big screen.

"It was because of hair extensions and make-up," said the modest star.

The former Neighbours actress has lined up several new movies, including the new Tarzan film.

But she revealed she is also happy to say no to lucrative offers if they are wrong for her.

"I will never sell my soul for a pay cheque," Margot said.

"I don't need the money because I'm not extravagant. I share my house in London with five roommates. I take the Tube - it's free entertainment!"