From the bestselling author of The Psychopath Test comes a characteristically humorous story of a musician on the margins. In Frank: The True Story That Inspired the Movie , Jon Ronson reflects on his days playing keyboard for the Frank Sidebottom Oh Blimey Big Band. Frank Sidebottom, best known for performing with a big fake head with a cartoon face painted on it, was a cult favorite in the United Kingdom and is the subject of the new movie Frank , co-written by Ronson and starring Michael Fassbender, Maggie Gyllenhaal, and Domhnall Gleeson.