Could you sit thru a Grateful Dead documentary that's 4 hours long?? Could you sit thru a Grateful Dead concert that was 4 hours long?? Martin Scorcese is the executive producer of "Long Strange Trip," we lost Jerry Garcia in 1995, Pittsburgh was one of the last concerts he ever did with the Dead (Three Rivers Stadium, "The Rain Show")...apparently much of this new doc focuses on Jerry...Grateful Dead Doc