
In 1991, the film "Madonna: Truth or Dare" became the highest-grossing documentary of all time (later dethroned by "Bowling for Columbine"). The director of the Madonna film, Alek Keshishian, was tapped by musician and actor Selena Gomez to helm her own tour documentary. At least, it was supposed to be a concert film. But in 2016, with the cameras rolling, Gomez's "Revival" tour ended up being cut short due to health issues.