Amour (Michael Haneke) - 8
Beasts of the Southern Wild (Benh Zeitlin) - 9
Life of Pi (Ang Lee) - 11
Lincoln (Steven Spielberg) - 13
Silver Linings Playbook (David O. Russell) - 9
it's a tough one as the three I have seen (Amour, beasts and PI) are all pretty evenly directed.