Will Arnett discusses Is This Thing On?, a film loosely based on Liverpool comedian John Bishop’s life.Directed by Cooper, the film tells the story of comic Alex, played by Arnett, and his soon-to-be ex-wife Tess, played by Laura Dern.Set in New York, the film swaps Manchester’s Frog and Bucket comedy club for The Comedy Cellar, where Arnett, also voice of the titular character in animated TV series BoJack Horseman, began his comedy career.