Tom Cruise and Katie Holmes are calling it splitsville. The couple is headed for divorce court, and insiders say it will a "nasty" ordeal.

This will be "The Top Gun's" third divorce. His most famous "other" wife, was actress Nicole Kidman, who is now married to Country Superstar Keith Urban. Entertainment writers are asking if the guy who jumped up and down on Oprah Wynfrey's couch has a pre-nup? If he doesn't, he could lose millions. The major contention will be custody over TomKat's beautiful kitten, 6-year-old Suri. Katie is going for sole custody. Could it be Katie's fed up with Cruise's Scientology religion?