The definitive documentary of legendary metal icon Ronnie James Dio. Transcending the standard rock documentary and beautifully highlighting both his powerful voice and his gentle heart, "DIO, dreamers never die" delves deep into the singer's incredible rise from '50s doo-wop crooner to his early rock days in Ritchie Blackmore's Rainbow to replacing Ozzy Osbourne in Black Sabbath, and finally cementing his rock star status with DIO.