this be a great piece of the late 60 early 70 festival scene . it be a real move tribute to a more free wheelin lifestyle and be that it be one of the last major festival . although and a lot of the festival turn out badly ( cop be uptight about drug and violence in the audience and performer threaten not to play because of money and on stage fire and etc . ) and an underlying message of hope and peace prevails . the film show the die nature of the ideal hippy spirit and mark a change in time from the revolutionary late 60 to the more straight lace 70 . performance by joni mitchel and the who and the door and joan baez and etc . make it a great concert to watch .