To commemorate the 50th anniversary of the 1966 Aberfan disaster, Sheers’ latest work, the film poem The Green Hollow, is based on the voices and memories of those involved. He talks with Louise Walsh whose novel, Black River, is inspired by the dreadful press intrusion and insensitive media coverage that occurred in the months following the disaster. Owen and Louise talk to Peter Florence

The Green Hollow can be seen now on BBC iPlayer.