It's been a while since I watched this but I remember the performances and script as great.

Far too short. I realize this was made in 2003 but it should have been made in 2011 or later, because it only tells half the story. All of these Michael Sheen-Blair movies dance around the Iraq War and how he completely shit the bed of his legacy, so until another one is made that addresses it they're essentially fluff pieces. Also any Blair-Brown story is incomplete without going into exactly how badly the latter was screwed over by the former.