Netflix has announced that the eagerly-awaited fourth season of The Crown will premiere around the world on Sunday, November 15 with Gillian Anderson making her debut as British Prime Minister Margaret Thatcher and rising star Emma Corrin cast as Lady Diana Spencer.

Teasing the palace intrigue ahead, the streaming giant says: "As the 1970s are drawing to a close, Queen Elizabeth (Olivia Colman) and her family find themselves preoccupied with safeguarding the line of succession by securing an appropriate bride for Prince Charles (Josh O'Connor), who is still unmarried at 30. 

(L-R) Olivia Colman and Helena Bonham Carter - Reprising their roles as Britain's Queen Elizabeth II and Princess Margaret respectively

"As the nation begins to feel the impact of divisive policies introduced by Britain's first female Prime Minister Margaret Thatcher (Gillian Anderson), tensions arise between her and the Queen which only grow worse as Thatcher leads the country into the Falklands War, generating conflict within the Commonwealth. 

Emma Corrin plays the young Lady Diana Spencer and Josh O'Connor plays Britain's Prince Charles

"While Charles' romance with a young Lady Diana Spencer (Emma Corrin) provides a much-needed fairytale to unite the British people, behind closed doors, the Royal family is becoming increasingly divided."

It was announced earlier this week that Widows star Elizabeth Debicki will play Britain's Princess Diana in the fifth and sixth seasons of The Crown.

Elizabeth Debicki - "It is my true privilege and honour to be joining this masterful series"

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