There are few shows where you can say that the lead performance is brilliant and absolutely riveting to watch, but the rest of the show is boring and forgettable, but this is what we saw with This England. Kenneth Branagh so encapsulates the bumbling, controversial Boris Johnson so completely, from the lumbering way Johnson walked through the corridors of 10 Downing Street to his unusual speech patterns, that it's at times hard to distinguish Branagh as Johnson from actual archival footage of the former PM.