Ignore the previous comments as most people who comment on documentaries of a political nature tend to be unable to tease apart their own emotion-driven opinions from the merits of a documentary. They probably didn't even watch it.
This documentary follows members of The Weather Underground through their founding to their dissolution. For those who don't know much about the group, this can be very interesting as it does lay out, in their own words, the goals and problems that this group faced. It can be a little dry at times as it is narrated by the interviews done with these former members, but I think it deserves a watch, especially if you want to know what these people are thinking about their former involvement in what is classically defined as a domestic terrorism group.