I thought this film was excellent and got over her principals very well. Even if it’s not 100% historically accurate that doesn’t matter, it is a drama after all. People who just think she was a traitor should think more closely - helping the Russians have the A bomb helped to maintain peace between the 2 superpowers. Anyone who was born after the war will remember the threat of a nuclear holocaust. People like Red Joan should be commended, not criticised.