Hollywood sex symbol Sharon Stone traded in her usual glamour and good looks for wrinkled skin and a bad hairdo to play the mother of 1970s porn star Linda Lovelace.
While many might find her unrecognisable in the biopic Lovelace, the 55-year-old says she wanted an even more drastic transformation.
"We tried all kinds of things because the original Dorothy Boreman was heavier. We tried a heavier, fatter bodysuit and so on, but we started to feel like it was becoming too costume-ish," she says in a telephone interview with Life! from Los Angeles.
The film's two directors, Rob Epstein and Jeffrey Friedman, encouraged her to channel the role internally, so she did away with the bodysuit.
"They're such great directors, really marvellous directors. They suggested I push for the performance and not worry so much about how I looked, that I find the character from within."
Lovelace, which is showing in cinemas, tells the story of American adult actress Linda Boreman, better known by her stage name Linda Lovelace. Amanda Seyfried plays the late titular character, whose abusive husband got her into sleaze.
Stone plays her domineering mother. Despite being set in the 1970s and 1980s, she stresses that the film is "timely" and "poignant" because of its themes of exploitation and abuse.
"I think abuse continues to this day all over the world and this film is just one particular case that is a metaphor for the bigger issues we are facing," she adds