This combination photo shows Diana, Princess of Wales, at the United Cerebral Palsy's annual dinner in New York on Dec. 11, 1995, left, and actress Emma Corrin, who has been cast to portray Lady Diana Spencer in season four of the Netflix series "The Crown." (AP Photo, left, and Faye Thomas/Netflix via AP)
This combination photo shows Diana, Princess of Wales, at the United Cerebral Palsy's annual dinner in New York on Dec. 11, 1995, left, and actress Emma Corrin, who has been cast to portray Lady DianaShow more

'The Crown' has found its Princess Diana in newcomer Emma Corrin