Scratch is a 2001 documentary film, directed and edited by Doug Pray. The film explores the world of the hiphop DJ from the birth of hiphop when pioneering DJs began extending breaks on records, to the invention of scratching and beat juggling, to the more recent explosion of turntablism. Throughout the documentary, many artists explain how they were introduced to hiphop while providing stories of their personal experiences.
Afrika Bambaataa presents a neighborhood in the Bronx which used to be called the house of hiphop where violence and gangs were common. After a trip to Africa, he created what is known as the Universal Zulu Nation, a group of socially and politically aware rappers, Bboys, graffiti artists and other people involved in hiphop culture.The importance of the DJ is shown by how he or she selects and controls the music in respect to the audiences needs. The relation and differences between DJs and MCs are explained, going through their roles in the music industry. ........
Source: Wikipedia