A sometimes forgotten gem of the eighties, Thin Blue Line masterfully blurs the line (pardon my pun) between a cohesively told story and a sober documentary. Every second of it holds your attention. One could argue this is a precursor to The People vs. OJ Simpson or, one of my personal favorites, a podcast named Serial.
In other ways, though, it's like a visual essay. I am reminded of Red Letter Media's review of the The Phantom Menace while watching this film. It presents a thesis early on, it builds the evidence, it provides the counterpoint, it disproves it, and it presents an alternative solution. As someone who grades papers pretty often, I was impressed with how well director Errol Morris stuck to that guideline, but more importantly, how well it turned out. This has to be one of the best documentaries ever made.