Can she sustain this incredible high? Why not? It's built on very long-established, secure foundations. Will her marriage last? Does it matter? She has a tight pre-nuptial agreement. She's becoming rich in her own right. She will never, ever, be poor. As her husband ages, could she fall for a younger man and leave him? It's possible. Michael Douglas is obviously dotty about his beautiful, smart, young bride, but she's demonstrated that when things aren't going her way, she's quite prepared to pull up all her roots and march off to a new territory and start again. Maybe it's this flint-like self-belief, energy and determination that has given her the leverage in marriage to a much older, much more powerful man. When he asked if she wanted to redecorate their various lovely homes, she said coolly, "I don't do houses."