We don't know about you, but in our lives pairing up with a sibling for even the most trivial of tasks is usually the fastest way to an argument. Doubles tennis partners being an absolute no-no.
Fair play then to Joel and Ethan Coen who, if Josh Brolin is to be believed (and there's no reason why we should question him!) didn't argue once on the set of the 2007 classic.
Here, we doff our collective cowboy hats to the 2007 Best Picture Oscar winner by presenting you with 20 things you (probably) didn't know about it. Hug your brother...