“They’re not going to catch us,” Dan Aykroyd, as Elwood Blues, tells his brother Jake, played by John Belushi. “We’re on a mission from God.” So opens the musical action comedy The Blues Brothers, which hit theaters on June 20, 1980. Much delayed and vastly over budget, beset by mercurial and oft-drugged-out stars, the film opened to outraged reviews. However, in the 44 years since, it has been acknowledged a classic. Based on original research and dozens of interviews probing the memories of principals from director John Landis and producer Bob Weiss to Aykroyd himself, THE BLUES BROTHERS illuminates an American masterpiece while vividly portraying the creative geniuses behind modern comedy.