Kristen Stewart stuns as Princess Diana in new teaser photo for the biopic Spencer

Kristen Stewart - who is best known for her role as Bella Swann in the Twilight movies - is set to play the "People's Princess" in a new film titled Spencer.

And now we've just had our second look at the 30-year-old in character — and the resemblance is uncanny!

A dazzling close up of Stewart shows her gazing into the camera wearing Diana's signature pearl earrings and her iconic engagement ring.

As well as the new image, new cast members have been revealed. Jack Farthing will play Prince Charles. Sally Hawkins, Timothy Spall, and Sean Harris have also been cast to star in the film, according to Deadline.

The biopic is being directed by Chilean filmmaker Pablo Larraín, who directed Natalie Portman in her Oscar-nominated performance in Jackie.

Jack Farthing

Larraín defended his decision to cast the American actress in the role, saying: "Kristin is one of the greatest actors around today."

He added: "Kristen can be many things, and she can be very mysterious and very fragile an ultimately very strong as well, which is what we need."

"The combination of those elements made me think of her. The way she responded to the script and how she is approaching the character, it's very beautiful to see. I think she's going to do something stunning and intriguing at the same time."

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Spencer will reportedly focus on the breakdown of Diana's marriage to Prince Charles, centring on a three-day period in the early '90s during one of the princess's final Christmas holidays at Sandringham.

The movie will also highlight the love she had for her sons, Prince William and Prince Harry.

"It's about finding herself, about understanding that possibly the most important thing for her is to be well, and to be with herself and by herself," Pablo explained of the highly-anticipated film.

"That's why the movie is called Spencer, which is the family name she had before she met Charles," he continued.

Charles and Diana separated in 1992 and divorced four years later in what was an unprecedented move in modern times for an heir to the British throne. Diana died in a Paris car crash in 1997 at the age of 36.

The biopic is expected to be released in the second half of 2021.