Not sure how accurate it is but I enjoyed Thirteen Days: http://www.imdb.com/title/tt0146309/

Fog of War also features the subject and is excellent: http://www.imdb.com/title/tt0317910/

EDIT: Falcon and the Snowman is also great and it's kind of related so it's worth a mention: http://www.imdb.com/title/tt0087231/