Darkness in Devon. Tim Roth dons the directing hat for the first time and brings to the screen a shattering tale of incest and child abuse. Alexander Stuart adapts from his own novel and it stars Ray Winstone, Lara Belmont, Freddie Cunliffe and Tilda Swinton. Story is about a family who have moved from London to the Devonshire coast. The son, Tom, is unhappy and feels alienated in the new surroundings, but when he discovers a dark family secret, things become much much worse. It's an uncomfortable viewing experience at times, making it a film you don't readily recommend, but Roth's approach…