Robert De Niro, one of our favorite actors, and his wife, Grace Hightower, the philanthropist and singer, have quietly walked for more than two decades. They have a few high issues and concerns over the 21-year-old marriage. The Niro and Hightower married in 1997 after dating for almost a decade, and they have two young children together. But this is not the first time that the couple has been included. The path mentions it in 1999, before meeting and providing for its occasion in 2004. This week, a source close to the family has confirmed that De Niro and Hightower are separated and live separately.