Hannais a 2011 action thriller film directed by Joe Wright , starring Saoirse Ronan , Eric Bana and Cate Blanchett .

Hanna Heller ( Saoirse Ronan ) is a 16-year-old girl who lives in a cabin in Finland with her father, Erik Heller ( Eric Bana ). Ever since she was born, Hanna has been trained by Erik to become an assassin. As part of her training, she has never come into contact with modern technology and has memorized a series of fake back stories for herself to be used when the time comes.

Hanna approaches Erik and tells him that she is "ready", and he retrieves a box containing an old transmitter, which he gives to her. After analyzing the situation, Hanna flips the switch, sending a signal of her location to Marissa Wiegler ( Cate Blanchett ), a corrupt CIA agent. Marissa sends a team to Erik's cabin, where Hanna, who had been waiting for them, is captured and taken to a CIA safe house in Morocco . There, she discovers that Erik is a former CIA agent who betrayed the agency and knows a secret that can't become public. Marissa has been assigned to kill him. Hanna, on the other hand, has been trained to kill Marissa by Erik. Knowing that Hanna was captured too easily, Marissa sends a body double ( Michelle Dockery ) to speak with Hanna. Hanna kills the false Marissa, breaks free and escapes the compound. While on the run, she meets Sebastian ( Jason Flemyng ) and Rachel ( Olivia Williams ), and befriends their daughter Sophie ( Jessica Barden ). They decide to help her go to Berlin , after she tells them her fake back story. Meanwhile, Marissa hires a mercenary called Isaacs ( Tom Hollander ) to eliminate Hanna and goes after Erik, who is in Germany .

Isaacs and his men corner Hanna and the family, but she manages to escape after killing one of Isaacs' men. The boy of the captured family is tricked into telling Marissa that Hanna is heading for Berlin. The family's fate is left unknown.

In Berlin, Hanna meets with one of her father's associates, who lives in an abandoned amusement park, to rendezvous with her father. However, Marissa and Isaacs locate them. They kill Erik's associate, but Hanna escapes. She eventually meets with her father at her grandmother's apartment, where she discovers that Marissa has murdered her grandmother. Hanna accuses Erik of not being her father, and it is revealed that Erik was once a recruiter for a program in which pregnant women were recruited from abortion clinics so that the CIA could alter their children's DNA, enhancing their strength, stamina, and reflexes in order to create a batch of super-operatives that could be trained from birth. The project was, however, deemed a failure by the CIA higher-ups and all the women were eliminated. Erik, unable to allow Hanna's mother to be killed, tried to escape with them, but Marissa murdered Hanna's mother before Erik could escape with Hanna to their cabin, where, in complete isolation, Erik was able to train her to avenge her mother while preventing the CIA from locating them.

Their discussion is interrupted by Marissa and Isaacs, who appear with Isaacs' remaining cohort. Erik acts as a distraction to allow Hanna to escape, and kills Isaacs and his cohort before being shot and killed by Marissa. Marissa then chases Hanna back to the abandoned amusement park.

There, Marissa confronts Hanna, who wounds Marissa with an improvised bow-and-arrow. Marissa then attempts to flee, but Hanna gives chase and catches up to her. The film ends as Hanna shoots Marissa dead, thus finishing the mission.