An insider\'s guide to the real relationship between Queen Elizabeth II and her sister Margaret. Princess Margaret is often dismissed as a party-going rebel who embarrassed the Queen with her scandalous life. This documentary reveals the real relationship between Elizabeth and Margaret and how Margaret sacrificed her own happiness for her big sister and the Crown. In their intensely close childhood, it was Margaret who dazzled, outshining her strait-laced sister; but when Elizabeth became the most famous woman in the world the pressure threatened to destroy their relationship. The programme-makers go behind Margaret’s headline-grabbing reputation to reveal how scandal shook the sisters’ relationship but how, in the end, their loyalty to each other proved the strongest bond.