Amnesty International’s 50th anniversary Standing Up For Freedom is the second film featured today from Argentina's Carlos Lascano. It commences with a vivid red flower around which an enclosing prison wall crunches down. Another flower is taken up by a running child who in turn passes it, like some hot relay baton, to an adult and so, symbol by symbol, atrocity by atrocity, the story of our inhumanity is laid bare. Amnesty has so many horrific files to report, Carlos certainly would not have wanted for material. There are some powerful images here, many of which would serve as a campaigning poster in their own right. The red of the flower and then of blood, against a predominantly black and grey background, is arresting. So is the dramatic music of Hans Zimmer and Lorne Balfe. Can one stop a tank with flowers?