Australian actress Naomi Watts, who is playing Britain’s Princess Diana in a new film, says she was so focussed on the interview the late princess did with Martin Bashir that she watched it as she worked out.

The biopic film entitled “Diana” will be released soon and Watts said she used the interview with Bashir on the BBC’s Panorama programme to help her fine-tune the Princess of Wales’ mannerisms.

The interview was first aired in 1995 and created much controversy at the time. During the now infamous interview Diana stated: “There were three people in this marriage” referring to Prince Charles’ relationship with now wife Camilla Parker Bowles.

Said Watts to Hello! Magazine: “I ran the Martin Bashir TV interview so often that it got to the point where I was watching it on my iPhone while I was out jogging. ”I had five minutes of her walk, five minutes of her wave, five minutes of her laugh that I’d watch again and again.”

The film will depict the final two years in the princess’s life just after her divorce from Prince Charles and just before she died in a car crash in Paris in August 1997. Watts recently walked out of an interview on BBC radio after becoming uncomfortable with the questions she was being asked about Diana.

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