Naomi Watts looks spot-on in the latest trailer for the upcoming biopic "Diana." The Oscar-nominated actress, 44, signed on for the project about the late Princess Diana early last year.

The clip begins by showing the fame and paparazzi that comes along with being the Princess of Wales - and how Diana didn't always take to the attention.

Watch Naomi Watts in the First Trailer For 'Diana'

"Lost" star Naveen Andrews plays Diana's love interest Hasnat Khan, the heart surgeon she met toward the end of her life.

"You can always pop around the corner for supper with me," Diana invites Khan, only to have him laugh at her request. Later, she admits, she's "in love with a heart surgeon."

Diana's famous, yet dangerous, trip to an Angolan minefield in a flak jacket is seen as part of her efforts to bring awareness to the dangers children in these countries faced.

Princess Diana Through The Years

The trailer also shows how her and Kahn's love began to unravel, as he tired of all the attention, with papers running his photos on the front page and Diana being chased by the flashing lights of eager photographers.

The film, slated for release in the U.K. in September and in the U.S. in October, is directed by Oliver Hirschbiegel and focuses on the final two years of the princess's life.