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'Long Strange Trip' Trailer: First Look at the Epic Grateful Dead Documentary (Exclusive)

It’s hard to believe there has not yet been a definitive documentary about the Grateful Dead, the seminal, cultishly followed jam-band. You can get your first look at Long Strange Trip in the exclusive trailer above. Directed by Amir Bar-Lev (The Tillman Story, My Kid Could Paint That) and produced by Martin Scorsese (you already know), Long Strange Trip culls new interviews, never-seen-before footage, concert performances, acid flashbacks, and more to tell the untold story of the Grateful Dea