Familiar faces in this film (Hemmings, Pleasance, O'Toole) help to get a Western audience to empathise with what it's like to live under a totalitarian regime. Our sympathies are with the heroes as they move towards a coup d'etat (an odd one in which the military intends to replace a more repressive regime with one less so). However not every conspirator's motives are the purest...
Review of Power Play
