Arts news and reviews. In a special programme, Mark Lawson discusses the current state of documentary with leading film makers including James Marsh (Man on Wire), Morgan Spurlock (Super Size Me), Molly Dineen (The Lie of the Land), Errol Morris (Standard Operating Procedure), Paul Watson (Raining in My Heart), Jane Treays (The Man with the Seven Second Memory) and Anthony Thomas (The Qur'an).