This powerful and gripping drama concerns a major miscarriage of justice - the wrongful conviction of the Guildford Four. The facts, of course, speak for themselves. Thanks to police suppression of defence evidence, not only were the Four, led by Gerry Conlon (Daniel Day-Lewis) sentenced to 30-year terms for the bombing of a Guildford pub in 1974, but their relatives, some of them hardly more than children, went to prisons and detention centres too. Conlon's father, resolutely played by Pete Postlethwaite, served several years of a 12-year term before dying in prison. Day-Lewis does all you could expect as Conlon, and the film does make you wonder how many such miscarriages lurk in the darker corners of the British legal system.