ThinkProgress:

For his damaging exposé of the health care industry, (SiCKO filmmaker Michael) Moore is now under attack from front groups supported and funded by the insurance and pharmaceutical industries. The New York Sun reports:

The pharmaceutical industry and think tanks it backs financially are readying a multifaceted counteroffensive against Michael Moore's film about the health care industry. [...]

The drug companies and their allies have been on their toes ever since the movie was being filmed, when they warned personnel to watch out for film crews from the "Fahrenheit 9/11″ director. But in advance of the film's release, they are upping the volume and the tempo of their activities.

And it's not limited to Michael Moore either. The 9/11 first responders that Moore took to Cuba in a pivotal scene in the movie are worried that they'll be persecuted as well.