One of my favorite documentary filmmakers, Jonathan Gruber, is fearless in the face of controversial material. I have been lucky enough to score a handful of Jonathan’s films and am currently working on his latest: a clear-eyed profile of the recently deceased centrist politician Joe Lieberman. For a mild-mannered guy, Lieberman evoked strong feelings from others over the course of his career, from deep admiration to wrath. Jonathan is at his best when exploring a subject like this, and it’s a great challenge for me to be working on this balancing act with him.