While the Instrument of Abdication was signed on December 10 1936, the famous broadcast was only made the following day. The former King was introduced as "His Royal Highness Prince Edward" since the title of Duke of Windsor would not be formalized until March 8 1937.
Edward VIII, now the Duke of Windsor, is shown making his abdication speech. Wallis Simpson is present in the background. This is not possible. The couple were separated at this point and would not be reunited until the following May in France once her divorce had been finalised.
Prince Phillip states that he has always wanted to learn how to fly. Yet at the investiture by King George VI, he is clearly wearing Fleet Air Arm Pilots wings on his Royal Navy uniforms left sleeve.
Churchill says to Edward in 1952 that Wallis "has three husbands that still live and breathe." Actually, her first husband, Earl Winfield Spencer Jr., died in 1950.
Queen Mary highlights England's church and royal house as older than, among other things, the Danish, when she speaks mockingly about Elizabeth's husband's background, including the Danish royal house. The Danish royal family is considered the second oldest in the world, surpassed only by the Japanese. The current royal Danish family can trace its ancestry back to King Gorm The Old, born approx. 936, died 958. The present English royal family - the House of Windsor - has ruled since 1917.
The opening title sets the date as December 10 1936, yet when the Princesses are then shown playing in the gardens all the trees have leaves on them.
Elizabeth should not be surprised that Churchill wants to schedule her coronation for the summer of the following year (1953). British coronations since George III in 1760 have typically been held a year or more after the death of the previous monarch. Having her coronation in the summer of 1952, only three to four months after the death of her father, would have been seen as distasteful.
Lord Mountbatten states that the royal house is now the House of Mountbatten upon the ascension of Elizabeth. The royal house is determined by the house the monarch is born into, e.g., Queen Victoria was the last monarch of the House of Hanover and her son Edward VII was the first monarch of the House of Saxe-Coburg and Gotha. Under the previous tradition, the house name would not change until Charles acceded the throne.
Elizabeth remarks to Edward that he never apologized to her for abdicating, that he never thought she would have preferred a simpler life instead of becoming queen. In fact, Elizabeth was always third in line after her uncle and father. Some royal biographers also assert that Edward had been left with limited fertility after a childhood bout of mumps and was unlikely to produce an heir, and there was always a strong chance Elizabeth would become queen. Had her uncle never abdicated and her father still died in 1952 as he did, she would have become heiress presumptive to her uncle. Assuming her uncle still died in 1972 as he did, she would have become queen at the age of 46.