Most of the content and editing were great, but the director's interview segments were excruciating. You can actually see Gates trying to find a kind way to respond to the insipid, off point, childish questions and I kept wondering if that was the purpose because they certainly didn't add much else. Also, did Diet Coke pay for all that advertising? And the final conclusion/question/narration was not in any way useful or interesting or insightful. I hope this guy keeps making documentaries but partners with someone capable of conducting an interview and providing worthwhile commentary and analysis.