"You grow in creativity and intelligence. And the side effect is that negativity starts to recede. Things like hate, anger and depression, sorrow, anxieties - these things start to recede and you live life in more freedom, more flow of ideas, more appreciation and understanding of everything." The American auteur was on stage at the NFT in the UK to discuss his oeuvre, his debt to transcendental meditation, the genesis of his latest film, Inland Empire, and why he went on the road with a cow. The Guardian reports.