In the Loop, Armando Iannucci

A wickedly funny satire about the inner dysfunctions of government bureaucracies on both sides of the Atlantic, with shots at the UN thrown in for good measure, In the Loop takes no prisoners and leaves none of its targets unhit. For reasons we're never told--and assume are secondary to individual self-promotion running rampant in the corridors of apparent powerlessness--the British (NOT English) and American governments on rushing to war somewhere in the Middle East.  

My caveat: what happens on the movie screen should stay on the movie screen. Though we all have good reason to suspect such motives propel much decision making in Washington DC and London, the only way to remain sane after watching this movie is to forget about it.  

Highly recommend.