i personally watch this to see the footage of the 60 and 70 . it be fascinate to learn how the drug movement essentially start and become pop culture and an eventual uncompromising force in life . the interview of the classic rock star be titillate and humorous . you feel like youre in on a secret and nod your head at the same time . because it feel so good and familiar . i love it and all segment from 60 present day . i highly recommend this for all aspect and include rock music and the hip movement and politics and good ol history . i check mark the box say this contain a spoiler and only because i have no idea what some might consider a spoiler or not in this regard and since i discuss what in all 4 segment and so just want to be safe .