After a few years they will break up -- the age difference will be cited as finally coming in to play.
She'll begin to get the most major roles in Hollywood and the highest salaries. And an Oscar to boot.
Worked well for Kidman.
Nicole Kidman was playing weighter roles at 16 than the Dawson's Creek girl has ever done.
Put her in the front of a picture and the girl dominates 
The only role she cannot pull off is "Tom Cruises's girlfriend" (every movie she made with Tom was a turkey)
At least Nocole will be marrying a more grounded guy in Keith Urban. He's had his devils with drink and drugs and beat them. He's turned his life around and is the antithesist of TC. Nicole will be marrying up, IMHO.