Two teams compete on a sports field. Well built, competitive, good-natured, they resolve their contest and, back in normal clothes, return, laughing and joshing, towards a concrete complex of estates. As they walk together, the teammates grow ­quieter, peeling off one by one, until it is just a few ignoring the shouted comments of the groups of boys standing around. For these are young black women returning home from an afternoon’s escape. Twenty years ago, La Haine, a film about male gangs from the banlieues, the suburbs and projects that form the Parisian equivalent of the ’hood, won Best Director for the man who also wrote it (and played a small role), Mathieu Kassovitz. It was shocking, exciting, stylish (black and white photography) and immediate, set over 24 hours fo