“Daddy, where does hip hop come from?” Only a vague storyline, the real action is spotting babyfaced old-school legends get excitable. Late 1981, and rap, graffiti and breakdancing are bursting out of the Bronx, with block parties, MCing and incendiary DJ performances by Flash, Theodore, Jazzy Jay. (D.St is the faceless maestro cutting up Chic). Plus nuff 25th anniversary extras. Esssential.