Tell me who else on TV or in the mainstream media talks about this as often and as well as Maddow does?
Feministing just posted their "Feministing Five" with Rachel Maddow a couple days ago, and I highly recommend it. A lot of it is relevant to this documentary. For example, they ask her "Why did you decide to make a documentary about the assassination of Dr. Tiller, and why did you feel so strongly about doing a larger-scale production about the anti-abortion movement?" (Her answer is great.) She also talks about the above segment on the "Wanted" posters.
A three-minute preview of the documentary has been posted at the Maddow blog:
In addition, check out "Dr. Tiller's Story Still Not Over," also on the Maddow blog. You can read more about such posters and abortion clinic violence here and here. If you're interested, you can read the Feminist Majority Foundation's "2008 National Clinic Violence Survey" here (PDF), and you can see a list of violence against abortion doctors, clinics and staff in the United States here.