if you hear anything bad about this documentary and stop listening . if you do not smile while watch the concert footage and you do not love rock n roll . betty be a complicated and intelligent and real human be with all the frailty that include . but he be a generous showman who personify rock music . if there be any doubt who the father of rock n roll be and with all due respect to the king and there be none after watch this absorbing and if incomplete and biopic about chuck berry . don not rent it buy it . today .