Viola Davis’ journey to the top of Hollywood’s A-list began on a former plantation in South Carolina, where she was born. She moved to Rhode Island at a young age and grew up poor, but found her way out through acting. In this week’s “Sunday Sitdown,” Willie Geist talks to the actress about her extraordinary life and career,  as well as a new project that’s close to her heart - a documentary about the diabetes crisis in the United States.