Mamma Mia and Les Miserables actress Amanda Seyfried has opted for a very different kind of role in Lovelace, which opens in Irish cinemas on August 23.

In this much-anticipated biopic, 27-year-old Seyfried plays the 1970s porn star Linda Lovelace, star of Deep Throat, a porn movie which made millions for its producers, but did not bestow happiness by any means on its leading actress. 

Lovelace died in 2002 in a car crash at the relatively young age of 53. Seyfried is keenly aware of the damage the role might do to her career, in terms of typecasting and other collateral damage.  

"I knew it, and people close to me did not stop reminding me either that it was a risk to take the part,  she told the Independent. "But I wanted a challenge, and it was an unique opportunity.”

Peter Sarsgaard plays Chuck Traynor, Lovelace's abusive ex-husband, and Sharon Stone plays Linda's devoutly religious mother Dorothy

“I would love it if Americans could only appreciate sex in film the way everyone in Europe seems to,” Seyfried sighs. “I mean, as far as I'm concerned, it's not that big a deal. I didn't mind the nudity at all in this film, I have no problems taking my clothes off. Not,” she adds quickly, “that I'd ever consider doing anything like a porno at all. But here in America, there is such a stigma attached to sex.

She admits that she grew up in Pennsylvania thinking that sex was scary and that it could actually kill her. "It's taken a while to figure myself out in that way and connect with sex in a healthy way. These roles are a way of challenging myself, of confronting me.”