Mr. Conservative (HBO)

First came Rory Kennedy, then Ivy Meeropol, and now CC Goldwater. Yet another young woman from a famous family has turned documentarian. Maybe there’s something in the granddaughter’s vantage that translates smoothly into the form: modern documentaries are typically observant, archival, conscientious, interrogative and ideologically tentative. A girl who grew up listening to blowhard arguments, staying out of fights and keeping watchful track of people’s feelings may find in documentary both a mode of expression and a form of revenge.