The hook driving Lauren Lazin's documentary about rapper Tupac Shakur, murdered in 1996 at age 25, is that it tells his story in his own voice, using material culled from the many TV and radio interviews he gave. Born in New York City and raised in Harlem, Baltimore, and Oakland, Calif., Shakur's childhood was financially impoverished but culturally rich; his education included an interval at the Baltimore School of the Arts. His first performing experience was as a child actor in Lorraine Hansberry's A Raisin in the Sun
. By the time he was in his early 20s, Shakur was a rap superstar whose consistently controversial lyrics dealt with black-on-black racism, in...