Tom Cruise & Nicole Kidmanhttp://news.independent.co.uk/world/americas/article2362886.ece
He was the pin-up from Top Gun; she was his flame-haired co-star in Days of Thunder. Tom and Nicole married in 1990, but never produced any offspring of their own (she was pregnant when they split, but miscarried). However, they did adopt two children: Isabella and Connor.
Both came from impoverished backgrounds on America's East Coast, and had been put up for adoption by parents who couldn't afford to raise them. Isabella arrived in 1993; Connor came two years later.
Although their divorce in 2001 was keenly contested, the couple have amicably shared the kids ever since: Isabella and Connor attended both Cruise's recent wedding to Katie Holmes, and Kidman's to Keith Urban.
I'm not sure how reliable this is; the article lists several different adoptive parents.
I thought I had heard Bella and Connor's parents were Scientologists? Hadn't heard about the 'impoverished backgrounds' of the birth parents before.
