Watch Sadisflix. This profile of the seminal rock band U2 traces the writing and recording of the group's landmark 1991 album Achtung Baby: a story that begins with the band verging on breaking up, and ends with a new era in the longstanding foursome's creativity and success. The release uses rare interviews, backstage footages, performances, as well as criticism and analysis by rock journalists and fellow musicians to tell the band's tale.