The Amir Bar-Lev directed/Martin Scorsese-produced documentary about the Grateful Dead slated to premiere at the Sundance Film Festival, will debut on May 26 via Amazon Prime and Video.

The Hollywood Reporter notes that Amazon acquired the documentary ahead of its premiere at Sundance, as Long Strange Trip traces the Dead’s rise to fame through its Bay Area roots to stadium-selling act. The six-part documentary includes never before seen archival footage including audio recordings and live tracks.

As for the film’s premiere at Sundance, Kreutzmann, Hart, Weir and Trixie Garcia will all be in attendance (all, along with Phil Lesh, are listed as executive producers).

“I’ve always admired the spirit and creativity of the Grateful Dead,” said Scorsese. “They are revolutionary artists who forever changed the world of touring and recording live music. They were a cultural force — a lifestyle, that continue to influence new generations of fans.”