Normally I would agree, but I don't particularly blame Kidman or many actresses for trying to stop the aging process. She isn't much of a character actress, she's a romantic lead. When ladies in Hollywood start getting into their 30s and beyond, they start having serious career issues.
If all you know how to do is act as a romantic lead, and you start noticing lines on your face, expect to be out on the streets of Hollywood fairly soon. Unless you can start acting like Helen Mirren or Laura Linney, there's simply no work to be had.
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