Lindsay Lohan is ready for her new role in "Inferno" where she plays a porn star Linda Lovelace.

Lohan says her new movie is serious and not “vulgar”.

The 23-year-old actress said: “I’m playing Linda Lovelace, who was the first globally recognised porn star. We follow her through her ups and downs and show what really went on in her life.

“The way that Matthew Wilder, the director wants to shoot it, is not vulgar. It's not about the raw sex and the shots of her fully nude. It's more about getting into her psyche and seeing how scared she was. That's what I want to show most in the film.”

Lohan, who is till wearing an alcohol monitoring ankle bracelet, is delighted with the challenge of a serious role, a more grown up role and is glad to be getting away from the teen girl role.

She told the Sydney Morning Herald: “People are going to say, ‘Oh, Lindsay Lohan is doing a porno.’ But it’s not like that.

"I've never played someones true-life story before. A lot of the other movies I did were just brainless for me. So it's nice to play something where I'm able to experience all these different emotions."

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