Mostly this documentary is about Music and Cannabis and its history in the USA and some cultures that use it, like rastafarians in Jamaica , but this documentary skips some music and other cultures , like the skip the La Cucaracha song, and the drink Bhang in India , they also skip the court case 'Leary v. United States' were the courts found Marijuana prohibition tax act unconstitutional in 1970 , and it became legal for a year until congress passed the controlled substance act in 1971. If Fred would have included this in his documentary i would have given it a 10 rating .