The story of the epic friendship between John Belushi and Dan Aykroyd, the golden era of improv, and the making of a comedic film classic that helped shape our popular culture "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. Their scripted mission...