'Long Strange Trip'
From the Warlocks to Winterland '73, hippie house band for acid-fuelled "happenings" to arena-filling juggernaut – this nearly four-hour documentary (!) from Amir Bar-Lev (The Tillman Story) covers the complete story of the Grateful Dead and their evolution into one of the most influential rock bands ever. We've heard there's tons of never-before-seen footage and interviews with all of the living major players; if we're lucky, this marathon portrait of an era-defining band will shamble along into unknown territory before gelling into something mind-blowing or transcendental. Of course, that may be the drugs talking.