This cinematographic presentation of such an important episode in British history is worth watching. The period locations and sets, costumes, language and accents are enjoyable, even as the bloody ending looms.
There is some context put into the mouths of real characters, but this is no typical docudrama; rather every thespian on screen has been pushed to overact, some at times to a Dickensian, even Monty Python degree. This conveys not the pathos presumably intended by the leftist director, but instead a kind of comic contempt. It's a shame really.