Three Kings at War
Emilia Fox plays the Queen in 1955, as Princess Margaret's affair with divorced royal servant Peter Townsend exploded into public view at the time of the coronation
Samantha Bond plays the Queen in the early 70s when Britain came as close to being a republic as it has in modern times with civil unrest, IRA threats and a kidnap attempt on Princess Anne.
Susan Jameson plays the Queen, portraying her hidden conflict with Mrs Thatcher, who set herself in opposition to Crown and Commonwealth over sanctions against South Africa.
Barbara Flynn plays the Queen in 1992: her annus horribilis, when Windsor Castle burned, the tabloids declared open season on the royals, and Andrew Morton released his Diana biography.
The final film shows the Queen, played by Diana Quick, confronting one last personal and constitutional challenge: Prince Charles' desire to marry Camilla Parker Bowles, Joanna Van Gyseghem.