In a documentary called Diana, Our Mother: Her Life and Legacy timed to coincide with the 20th anniversary of Diana's death in a Paris car crash on Aug. 31, 1997, the princes said they spoke to their mother shortly before she died.
Private moments
"Harry and I were in a desperate rush to say goodbye, you know, 'See you later' ... If I'd known now, obviously, what was going to happen, I wouldn't have been so blasé about it and everything else," Prince William said.