the hard part about write this review be separate my feeling about this man ( paul green ) and his school ( the school of rock in philadelphia ) and and the documentary about both ( rock school ) . paul be an arrogant and selfish and and demean man and but his school produce some incredible talent and and the movie that director don argott make be clever and witty and and downright funny . paul green school of rock have 120 student and age 9 through 17 and who learn to play everything from black sabbath to frank zappa and and most importantly and paul get his student on stage and teach them how to perform like a rock star . but he horrible . he like simon cowell in that really mean and insulting kind of way . but perhaps that kind of cruelty push them to work even hard and practice more to perfect their craft . he do everything that any other teacher today would instantly get sue for he curse at them and yell at them and make them cry and hit them and tell them that they suck and and ask them if they love satan ( he do that to pump them up for the black sabbath concert theyre about to put on ) . it endlessly amuse to watch 9 year old wear all black and smear eyeliner all over their eye and draw cross on their forehead and and write ozzy on their knuckle . and to see their mom do all that for them be even funnier . the cool moment of rock school and however and be when the very top student be fly to germany to play at zappanele and the large frank zappa festival in the world and and they perform with an original member of zappa band . then and to have the original band member and plus the entire zappanele audience and blow before them in praise ( literally bow . ) be out of this world . not every music student get an experience like that . argot do a great job at show u all side of paul green personality . i hate him in one scene and love what he do for these kid in the next . if rock school do anything and it will make you want to get off your butt and start practice what ever it be that you love . you will want to pick up an instrument and or start painting and or get back to study . this movie make you want to be the best at something and and it make you want to work for it .