"Red Joan" is based on the true story of Melita Norwood, a British civil servant who was revealed to be a KGB spy. She worked during World War II at the British Atomic Energy Research Establishment and passed atomic secrets to the Soviet Union. Norwood was arrested in 1999 at the age of 87, prompting a public debate on her motivations and the implications of her actions. The film explores themes of loyalty, betrayal, and the moral complexities of espionage, framing her as both a patriot and a traitor.

"Red Joan" is loosely based on the true story of Melita Norwood, who was a British civil servant accused of spying for the Soviet Union. While the film captures the essence of her life and espionage activities, it takes creative liberties for dramatic purposes, including fictionalized elements and characterizations. The historical accuracy regarding events and motivations can vary, but the core premise of a seemingly innocent woman involved in espionage reflects real-life themes from the Cold War era.

"Red Joan," based on the true story of Joan Stanley, a British civil servant who was revealed to be a Soviet spy, offers a gripping narrative that intertwines personal and political themes. The film features strong performances, particularly from Judi Dench and Sophie Cookson, and explores complex moral dilemmas related to loyalty and betrayal. While some viewers may find its pacing slow, the story's historical context and emotional depth can make it worthwhile for those interested in espionage and historical dramas.

In "Red Joan," Sonja, also known as Joan Stanley, is portrayed as a British scientist who becomes a spy for the Soviet Union during World War II. The film follows her life as she is arrested in her old age for espionage, reflecting on her past decisions. As the story unfolds, it reveals her motivations, the impact of her actions on her life and relationships, and her complex moral justification for providing atomic bomb secrets to the Soviets. The film ends with her facing the consequences of her choices, leaving her legacy open to interpretation.