While No Country For Old Men neared perfection, and the cast in this film is incredible, the material they are working with just isn't up to scratch.
The excellent John Malkovich is an aging CIA agent. A copy of his memoirs get lost at a gym and Brad Pitt and Frances McDormand try to blackmail him in order to give his disc back. Add several other characters including George Clooney, Tilda Swindon etc, all acting is excellent, but there is just a lot of coincidence, few funny moments and overall I was largely disappointed. I just kept waiting for something really funny to happen or a really memorable scene. There is perhaps one, but I won't ruin that.
I think my favourite character was Brad Pitt as a Gatorade drinking, energy filled simple man working at the gym.
Would highly recommend renting before you buy. Also try Street Kings which was a fantastic LA cop thriller.