The Victorian Gothic (with 1970s additions) maze of Cheltenham Ladies’ College is a far cry from the sun-blasted soundstages of Los Angeles, particularly at this time of year when it’s surrounded by deep piles of swirling autumn leaves. Nevertheless, this past week saw the high-ceilinged, wood-panelled College corridors filled with over 400 scriptwriters, both aspiring and established, rushing to the seminars, panels and pitching sessions offered as part of the Cheltenham Screenwriters' Festival, the only event of its type in the UK.