Cate Blanchett and Michael Fassbender team up in Black Bag, an espionage thriller directed by Steven Soderbergh. The film follows a married couple, both high-ranking operatives for Britain’s National Cyber Security Centre, as they navigate a mission where professional and personal loyalties collide. Fassbender’s character, George Woodhouse, is tasked with uncovering a double agent within the organization, only to find that one of the suspects is his own wife, Kathryn St. Jean, played by Blanchett.
“They have a strong marriage,” Fassbender said. “He feels like she’s in his corner. There’s a deep sort of respect and understanding of one another. So when this happens, for George, it’s like, where should his loyalty lie? With his country or with his wife?”
The film marks a reunion for both actors with Soderbergh—Blanchett having worked with him on The Good German and Fassbender in Haywire. The director’s signature style, handling cinematography, editing, and directing himself, brought a distinct energy to the production. “You sort of dance with him,” Fassbender said. “He’s got this energy and he just permeates confidence throughout the set.”
A key sequence in Black Bag is a dinner party where George invites the primary suspects and doses the food with truth serum in an effort to uncover the mole. Another pivotal scene has him revealing the traitor’s identity in a tense, dialogue-driven moment. Blanchett described the experience as challenging, saying, “We were sitting there a long time in between takes, talking about everything but the scene, so it would stay fresh. And then we’d do all these different pieces. On the second day, I lost track of things. It was like, ‘What are we doing again?’”
The supporting cast includes Regé-Jean Page, Tom Burke, Marisa Abela, Naomie Harris, and Pierce Brosnan. Page, playing a young agent, described the scenes as feeling like “a verbal tennis match,” where shifting dynamics kept everyone on edge.
Soderbergh set a distinct tone for the film, avoiding the bleakness of traditional spy dramas. “Spies’ lives can be isolating and lonely, and movies about them can be quite dour,” Fassbender said. “And Steven was like, ‘No, not this one. It’s got to be stylish.’”
While neither actor consulted real-life intelligence operatives, Blanchett studied memoirs of former agents and noted the structural biases within intelligence agencies. “For female spies, there is still a kind of thoughtless bias within most of these agencies,” she said. “It’s frustrating because female operatives can actually gather a lot of subtle information that male operatives aren’t as attuned to getting.”
Beyond the action and intrigue, Black Bag explores themes of trust, deception, and the weight of long-term commitment in a high-stakes world. Fassbender and Blanchett approached their dynamic without extensive discussion, instead letting the chemistry play out naturally. “I don’t much like having discussions,” Fassbender said. “I want to see Cate’s interpretation when I get to set and what she’s throwing out there. It means I have to be listening and awake and trying to respond.”