This documentary is about so much more than a character study of one big jerk. It's also about an unspoken exchange by those so impressed with celebrity that they put up with that jerk's abhorrent behavior. Troy keeps his abusive hold on his cohorts, so long as they perceive that they are also on their way to "the big time". You see a look on their faces resembling hapless puppies ...too intimidated to speak up to Troy Duffy, the incipient Director maverick --that is, until his house of cards completely folds. Then normal human boundaries resume and grievances are tabled. That's the other side of the story. That's the sickness of the whole system.
Within a cultural vacuum of values, a guy like Troy really COULD and usually does go far. His only mistake was that he revealed his ego-maniacal behavior too fast to the power-brokers that "made" him.
Again, Hubris like Troy's is alive and well in Hollywood. His is a familiar personality-type that does set things in motion and gets things done. As much as I hate to say it, it's true. Had his gestation into the entertainment world included a modicum of tact, we'd all be celebrating Mr. Duffy today as some sort of American treasure. His story is much closer to the norm, vs. being an anomaly in terms of type.
Interestingly, even after experiencing a promising directorial career turned to shambles, the mechanisms of denial only enlarge. Troy, brimming with resentment for "the system" (a result of his self-inflicted travails), is invited to speak to a group of university film school students. There he presses his advantage and systematically degrades the aspiring filmmakers in the most predatory question-and-answer session this side of the Jerry Springer Show. The result could be comedic, except that you see each innocent soul being laid open like raw meat, as Troy gladly applies the salt. This spectacle includes shots of the bow-tie-wearing, shrinking and silent professor. Once again, all is tolerated because Troy's "been to Hollywood" and that's what's honored.
There's a lot to recommend here as an instructive example of the seedy edge of Filmland's deal-making (and breaking), as well as operant illustrations of sycophantic behavior. It's a cautionary tale.. An old cliche is given new life: Be careful of what you want.