Bruce Springsteen, Eric Clapton, and Martin Scorsese praise the Band in the new trailer for Once Were Brothers: Robbie Robertson and The Band, an upcoming authorized documentary about the group. “There is no band that emphasizes becoming greater than the sum of its parts than the Band,” Springsteen says in the trailer. “Simply their name: the Band. That was it.” Scorsese, who directed The Last Waltz, the Band’s legendary farewell concert film, adds of their music, “This didn’t sound like anything else.” The trailer provides a quick overview of the Band’s history, from their days backing Bob Dylan to their breakout debut album, Music From Big Pink to that all-star farewell concert. The film itself, out February 21st in theaters, employs rare archival footage, photographs from the era, the Band’s music, and interviews with Robertson, as well as Springsteen, Clapton, Scorsese, Van Morrison, and others.