Margot Fonteyn remains, 14 years after her death, the most famous ballerina of our time, spectacular in roles such as Princess Aurora in 'The Sleeping Beauty' (1955), and Odette in 'Swan Lake' (1967). When she teamed up with Nureyev, one of the most brilliant and magical partnerships in all of ballet history was born. The birth reached its climax 40 years ago with a production of 'Romeo and Juliet' (1966), choreographed by Kenneth MacMillan, with music by Prokofiev, and those who saw the performances will claim that nothing like it had been seen before - or since. 2005 is the 40th anniversary of Nureyev/Fonteyn's 'Romeo and Juliet'. This documentary attempts to understand the real Margot Fonteyn, and the terrible sacrifices she made to achieve what she did - her 'duty', as she called it.