In the period between her separation from Prince Charles and her death, Princess Diana (Naomi Watts) had a secret affair with a Pakistani heart surgeon (Naveen Andrews). This film lays it out in simple terms: her loneliness, her fame, her political causes and her struggle with love. Watts brings her talents to give the character depth and Andrews is effective. The events are relayed in short scenes with uninspired style, almost like a documentary. The writing is equally prosaic. While the film never especially touching, it does reveal interesting details in the life of “the most famous woman in the world’.”