British-Australian actress Naomi Watts spoke to UK Instyle magazine about concerns while filming for the biopic on the life of the late Diana, Princess of Wales. The 44-year-old Shoreham-born actress stars as Diana.

The film is based on the final two years of the princess' life and includes details about her relationship with Dr Hasnat Khan and billionaire Dodi Al-Fayed, who died with her in the Paris car crash in 1997. It will also show the People's Princess's humanitarian work carried out in central Europe

In the accompanying interview, Watts spoke about the portrayal of Diana and joked that she may have to escape the country once the film is released.

"I might go into hiding. I might have to leave the country," she said.

The 44-year-old King Kong star also revealed that she was initially hesitant to take up the role.

"More than twice I thought about not doing this. I said no before I said yes just because taking on that challenge is a massive one. There were weeks of deciding, and then I thought, 'God, I don't like the idea of anyone else playing that role,'" she said.

Watts had previously said that she did not feel any resemblance to Diana but revealed that she is ready to face the critics.

"Of course, people are going to jump to say, 'She's not tall enough; she doesn't have the nose, the look, the voice…', all of those things. But once I got past that, I liked the idea of the challenge," the mother-of-two added.

Diana will be released in the UK on 20 September.

READ: Princess Diana Death Anniversary: Princess, Wife, Mother and Woman Whose Charm Refuses to Die [PHOTOS]

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