Liz Garbus just made Netflix’s first ever commissioned documentary. It’s on blues singer Nina Simone, who was an outspoken, hugely talented and influential singer and human rights activist in the 50s and 60s, and whose life was marred by drug and alcohol abuse. Her story is truly fascinating, and is bracingly told in the film, titled What Happened, Miss Simone?. Garbus, a talented crafter of stories, treated Simone’s life with a gentle but unflinching hand. We caught up with Liz in Soho to talk about the legendary singer and how to become a filmmaker...