WHAT IT'S ABOUT This "American Masters" portrait was produced by Amy Berg, an Oscar nominee for the 2006 documentary "Deliver Us From Evil" about a convicted pedophile, who interviews members of Janis Joplin's first band, Big Brother and the Holding Company; Kris Kristofferson, whose hit "Me and Bobby McGee" was spectacularly covered by Joplin; record mogul Clive Davis; and famed filmmaker D.A.