Is This Thing On ? is inspired by the story of English comedian John Bishop, who attended a comedy open mic night while going through a divorce and went on to become a successful comedian and regular fixture on British television. The focus here, however, is not on an emerging comedy career but on the way finding a creative outlet gives the central character an injection of life and a new perspective on, and possibly a chance to save, his broken marriage. The premise is well executed but there isn't enough insight to prop up the threadbare story. Based on a UK comedian they may be, but events here are transported to New York. The film opens with Alex Novak (Will Arnett) looking lost at his kid's assembly before we witness him and wife Tess (Laura Dern) calmly decide to call time on their marriage. Feeling lonely (and broke) Alex signs up for an open mic spot in order to avoid paying the entrance and ends up diving headlong into the world of stand-up comedy, which ends up servin...