Inside The Hills of California: meet the theatrical sisterhood of Jez Butterworth’s new play

With his new work, The Hills of California, playwright Jez Butterworth has brought together a powerhouse cast: actors Laura Donnelly, Helena Wilson, Ophelia Lovibond and Leanne Best. They discuss what this experience means to them, how it came to fruition, and the joys of working with Butterworth, Mendes and, most importantly, each other