Check out this website:
http://www.fahrenhype911.com/
This is a counter documentary addressing Michael Moore's masterpiece of fiction.
One interesting excerpt is from a Iraqi war vet who lost both his arm in Iraq. In Moore's film, Moore cuts and pastes parts of his interview with the guy in a way that makes it seem the guy hates Bush and the war effort. In fahrenhype911, the same guy is interviewed and he says that his words were twisted and combined in a way that distorts his views (fraud on Moore's part). He goes on to say that the pain of watching his interview twisted and manipulated hurts him as much as losing both arms.
That is one example of the Moore's POS film. Watching his film without the other for balance is like watching a debate with one debator. You should watch both before you make up your mind.