The movie is great,simply said. It stays like that throughout the whole movie,the ending is in line with the rest. No plot holes there,and since it is based on true events,I expected the movie to be biased toward or against the main character. But it is not. It leaves to the viewer to decide whether Katherine has done the right thing. And that is the main strength of the movie,that everyone has to decide whether she is a traitor who naively endangered her country and the free world,or a martyr who tried to save people's lives...You want to know what my opinion is?
Review of Official Secrets
