Los Angeles: Veteran actress Helen Mirren is against young people getting plastic surgery and thinks it is horrific when they do.

The 66-year-old star had earlier defended the right to have cosmetic surgery, saying she understood why people change their appearance, reports said.

But now Mirren has said she doesn't understand why younger women would want to ruin the purity of their bodies.

"The only thing I don't like on young people is plastic surgery. I'm not beautiful. I was never beautiful. I just clean up nice! Sexiness is different. I don't mind being sexy, but on my own terms. Women don't lose their sex appeal as they get older - it's some kind of indeterminate thing an appreciation of life and wisdom and other things," said Mirren.

The 'State of Play' star is currently working on an as yet untitled biopic of Phil Spector, where she plays the defence lawyer of the music producer as he is put on trial for the murder of Lana Clarkson.