Featuring Kanye West, Chuck D., Gnarls Barkley and many other red-hot hip-hoppers, director Walter Bell's documentary takes you behind the scenes of the illegal mixtape industry. From the music itself to the battles with major record labels, this exposé digs deep for a revealing look at the underground phenomenon. Other artists include Lil' Jon, G-Unit, Ed Lover, Dr. Dre, David Banner, Xzibit, DJ Red Alert, DJ Vlad and more.

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