A bit confusing, but if you concentrated and followed the dates closely, you should be fine...
Matt Damon again gave a marverlous performance as the head of CIA, Edward Wilson, always placid, stiff, but extremely intelligent.
Angelina Jolie was beautiful as Wilson's wife. (It was strange however, watching this actress played a passive role, after all the 'actioned' roles as Clara Croft in Tomb Raiders, or as Mrs Smith, etc).
The movie was about how Edward Wilson, facing a failure in his attempt to direct his CIA organisation grabbing Cuba back for US during the early 1960s, tried his best in finding the culprit, the leak.
In doing so, he inadvertently had flashbacks to his childhood, the last meeting with his dear father before the old man suicided, his university days at Yale, the romance he had, the wife he ended to marry only because he made her pregnant, the intensed and hard work he carried out for CIA and his country, the difficulties he got in dealing with his wife and only son, the constantly 'on the watch for treacherous activities' from his own circle and workforce.
Eddie Reymayne was good in his role as Edward Wilson junior, a weak character, who resented his father because he felt his father had neglected his mother and him for the CIA.
The contrast was there, Edward Wilson strived to do good for his country, because of what his father did and said before he took his own life.
His son, indifferent, self centred, undid as much as he could, the good work Edward Wilson tried to do for his country.
Found the leak, Edward Wilson was pressured into betraying his own organisation and country for his son's sake. Being an intelligent man, he decided to not following his father's mistakes, and outwitted the enemy in his own way.
It was very interesting, watching Matt Damon tried to play the roles of a young and old Edward Wilson. Angelina Jolie was quite successful playing a sad and ignored wife, who prematured before time (grey hair, wrinkles and all!). Matt Damon was not that good (should we blame the make-up peoples for that?).
It was a bit funny, watching the old Edward Wilson hugging his 20s YO son, for the two of them were practically like brothers (in age). Other than that, the movie was quite good, very poignant, deep, make ones wonders about life, about what ones should really values in life. It also showed that, life is always full of unexpected events, twists, but how one confronts one's mistakes and goes forward with life, is what make people different, make or break.