Barry, Robin and Maurice Gibb tell their own story in this retrospective, which also includes comments from their mother, Barbara; Dionne Warwick; Kenny Rogers; Cliff Richard; and Maurice's ex-wife, Lulu (as well as his current wife). The Bee Gees first became stars in the '60s, but "Saturday Night Fever" made them "a social movement," Barry recalls. Then disco died, but not the Bee Gees. "They're like boomerangs," says Rogers. "You can throw them away but sooner or later they'll come back."