When Sheila Nevins started her career in the 1960s, she didn't know women could be bosses. After all, she'd only ever worked for male supervisors. Now, at 78, she's the president of HBO Documentary Films. Sheila joins Katie and Brian for an unflinching conversation about everything from her painful childhood memories to her plastic surgery. Plus, they discuss what makes a great documentary and listen to celebrities read excerpts from Sheila's new book.