England's real-life Princess Margaret is smashingly embodied by Lucy Cohu in The Queen's Sister (2005). This lively and elegant biopic profiles the Princess's controversial life from her father's 1952 death up until the 1970s. Among her tabloid-friendly adventures are numerous crackpot romances, a 1961 wedding opposed by many in the British government, and even her planting a smooch on the daughter of a United States ambassador. Top-heavy Lucy bares her Towers of London at the twenty-minute mark. Drool, Britannia!