I went into this expecting it to play up the political machination aspect of The Sopranos, but found instead that it played up the emotional dimensions—the tragedy of cycles of violence destroying any attempt to escape and build something better, over and over again. The constant of this universe is that every murder causes another murder, but in this short of a timespan it starts to feel pat rather than organic.
The story of Tony's downfall seems similarly meticulously neat, as we see moment after moment of "if only"s, where events could have gone onto a better track but were instead pulled down to where they would always end up. The most genuinely tragedy all draws its emotional weight from the show rather than the film, with the audience's knowledge of Christopher's fate being ham-fistedly emphasized by the narration.