Michael Moore is coming.  The name of the planned film is Sicko, and it sounds like it will be focused on health insurance and medicine.  From his web site: 

Send Me Your Health Care Horror Stories… an appeal from Michael Moore

Friends,

How would you like to be in my next movie?  I know you’ve probably heard I’m making a documentary about the health care industry (but the HMOs don’t know this, so don’t tell them – they think I’m making a romantic comedy)…  Have you ever found yourself getting ready to file for bankruptcy because you can’t pay your kid’s hospital bill….As you can imagine, we’ve got the goods on these bastards…  I promise you that with "Sicko" we will do our best to give you not only a great movie, but a chance to bring down this evil empire, once and for all.

At www.michaelmoore.com.