Nicole Kidman has spoken about her marriage to Tom Cruise in rare comments made nearly 20 years after their split.MORE: Nicole Kidman's daughter Bella Cruise makes rare show of support for her mumThe former couple were married in December 1990 and together adopted two children, Bella, now 27, and Connor, 25. In February 2001, the couple's spokesperson announced their separation, and just two days later Tom filed for divorce.