See Naomi Watts recapture the late Princess Diana in the first images from Caught in Flight.
The first images of Watts' remarkable makeover show the 43-year-old actress fully embracing her transformation into the late princess.
From the coiffured hair to the heavy eyeliner - along with with Diana's slightly nervous body language and famous sideways glances - Watts has perfected her "Diana" look, above
British-born Watts, who found fame on Australian TV before becoming a Hollywood star, will depict Diana's life in her final years, including her secret romance with heart surgeon Hasnat Khan, and her untimely death in a car crash in Paris 1997, with her boyfriend Dodi Al Fayed.
Above: Watts recreates the infamous CCTV footage of Diana taken moments before her fatal car crash
The King Kong star previously admitted she was "absolutely terrified" of playing the former royal and was worried that she did not look enough like her.
Watts shines in a glitzy evening gown, above, as she portrays one of Diana's many red carpet appearances
"Look, I’m a great admirer of Princess Diana but I look in the mirror and can’t see I have any resemblance," Watts told reporters earlier this year. "It worries me, but the film makers seem to see something. I never met Princess Diana though I would have liked to."
Watts waves to the crowds during filming, above and Diana, Princess of Wales at the Tate Gallery in 1997, a month before her death at the age of 36.
Watts also said of Diana, "She is a part of our history, an incredible woman and fascinating but a tragic ending."
The resemblance to the "People's Princess" is uncanny in the image above
The film's director, Oliver Hirschbiegel, has described Watts as "a truly exceptional actress" who embodied "the warmth, humanity and empathy of such a global icon as Princess Diana."
The Help star Jessica Chastain was originally set for the starring role, but pulled out last year.
Does Naomi Watts make a convincing Princess Diana? Let us know on Twitter or in the comments section below.
Words: Anna Pollitt. Pictures: Splash News and Rex Features