There are an awful lot of things I don't like about Michael Moore and his films. Most obvious is the terrible influence he has had on doc filmmakers that has encouraged the filmmakers to make themselves the stars of their own movies. He also is incredibly manipulative in his films, such as bringing 911 volunteer rescue workers to Cuba for "free" treatment. And "anonymously" donating $12,000 to his harshest critic to help his wife with medical care. (Is it anonymous when you mention it in a movie???)
But even with all the criticisms, SICKO is a very powerful movie. Perhaps it's because I have first-hand dealings with the health-care industry, both the good and the bad, that made it such an emotional experience for me, but I suspect anyone who has had health issues in their immediate family will understand his criticisms of HMOs. Unfortunately, his face will probably turn off a lot of people. And, he criticizes Hilary Clinton for taking money from health care industries, even though she is perhaps our best hope for health care reform in this country, so he will even turn off some liberal democrats.
Nonetheless, it's an important discussion and I think every American should see the film.