The lesson: You don't need to live in a fortress to protect your family.

FORBES: Help!

The lesson for executives is you never know when you will need a friend.

FORBES: Churchill: No One Likes a Sore Winner

Another lesson learnt from this film is that all you need to save the world is a bucket of water, a few masked men and an American lady with a work-station in Islamabad.

BBC: Viewpoint: Has Zero Dark Thirty insulted Pakistan?