Dame Helen Mirren finds the "fascination" with her age and beauty regime "boring".

But the star, who celebrated her 70th birthday on Sunday, said she accepts it as "part and parcel" of her job.

Asked how she finds the interest that there is in her, her age and her beauty regime, Dame Helen told Good Morning Britain: "It's boring. It's boring."

Pressed on whether she understands the fascination with it, she replied: "No, I don't understand your fascination with it. And I don't think you have a fascination with it. I think you're saying what your editor told you to say."

She added: "I just take it as part and parcel as my job. And it is."

Dame Helen, who won her first Tony Award for her role as the Queen in The Audience last month, said you "don't lose interest as a woman", or even as a man, in these things as you get older.

"All we do is we we get more knowledge about them. We get more knowledge about what's good for you, what's bad for you, what works for you, what doesn't work for you. And so I don't see why, as an older person, you should be excluded from the fun of all of that, you know?"

The stage and screen actress said she does not have a motto for life but said she is getting less and less rule-bound.

"There are ways of living life ... and we impose rules upon ourselves all the time," she said.

Referring to her appearance in a beauty campaign, she joked: "To do a beauty campaign at my age is a bit sort of out of order really."