The documentary Chernobyol, is not only good, it is one of the best things I have ever seen in my life.
I wept several times. When the divers volunteered, when the puppies were shot, when the female scientist argued with Luchenkov trying to get him tell the truth about the control rods. And finally, at the end, I legitimately sobbed seeing the footage of the real scientist and reading about his suicide and the resulting changes made to the reactors.
Much like The Gulag Archipelago, it is a scream against the cost of lies. Pleasant lies, for the good of the people, for the good of our ideals, the desire to not see what we do not wish to see, the desire to avoid facing what must be faced. The cowardice of telling people what they want to hear and what we want to tell them.