BERLIN (Reuters) - When actor-director Billy Bob Thornton was a boy, his father took him to the scene of car crashes to survey the wreckage. Now he has turned his unconventional childhood into a movie. "Jayne Mansfield's Car" is a dark family comedy that explores how war affects men and how fathers and sons so often fail to communicate. The picture, warmly applauded at the Berlin film festival on Monday ahead of its world premiere, is the first feature Thornton has directed for over a decade. He also stars. ...