*possible spoilers ahead*
The block itself comes into its own as a setting: the grim inhuman geometry of housing estates makes for a dystopian fortress suddenly under siege. Shot at night, with dim lights flickering off wet pavement and any number of long corridors, sharp corners and twisting staircases, it brings home the hostility of the environment just as the boys show their mastery of it. It is the way that the street gang occupy the space of the estate – that same habit of roaming proprietorially with bicycles and dogs in tow, seen by the state and media as antisocial behaviour – that makes it possible for them to confront the invaders in a fair fight. The cold, sinister backdrop of the estate throws the lively and sharp human drama into relief.