Thanks docnick for this wonderful topic which I wanted to talk for long time. Yes, I too watched this movie and fetl pity for American Health Care System.
It was
Fahrenheit 9/11 which was the first movie I ever watched by Michael Moore.
I literally went into a shock when I finished this movie.
Then, I heard about SICKO, so awaited eagerly long before its release.
I don't have to say much about this movie as docnik has already highlighted, if you want to go through some of its review then;
Sicko : Review : Rolling Stone Sicko Review - Stop and Wonder Web Development Sicko - Rotten Tomatoes FlickFilosopher.com: Sicko (review) Sicko review
You can get plenty of website with its review.
Then I became curious who is this guy making movies on such controversial topic and I found out that he is a millionaire.
Michael Francis Moore (born April 23, 1954) is an American author and Academy Award-winning director and producer of Fahrenheit 9/11 and Bowling for Columbine, two of the highest-grossing documentaries of all time.
Moore is a self-described liberal who has criticized globalization, large corporations, gun violence, the Iraq War, U.S. President George W. Bush and the American health care system in his written and cinematic works. In 2005 Time magazine named him one of the world's 100 most influential people. [
read more]
Here is one interesting things about Moore:
Moorelies 
"...The biggest anti-Michael Moore website on the internet..." - Michael Moore
Whatever it may be for christ there is always an antichrist just like two pole of a magnet without + & - it is unstable. Finally Moore has given health care purposal