Terrific cast and production, a great effort a putting all of the story in to one movie. These secret service people could be killed on any given day but still had a job to do. The cold war was such a commitment for the countries involved, it became 'THE' priority for decades. The 70's is very well captured and the whole feel of the movie is very good. The devastation a mole could create in such an organisation, is incredible. Just look at the lives Kim Philby cost.
A great effort and made me long for more Le Carre stories again.
Many of the reviewers who do not appreciate the production, acting, feel of this movie, will be people addicted to ridiculous special effects, irrelevant story lines and a total non appreciation of history in their movies. If stories based on factual times and historical events interest you. Then you will be able to understand and appreciate this story, dangerous and scary times for those involved. Excellently produced and acted.