Amy Schumer, the Peabody- and Emmy-winning comedian, actress and best-selling author, discusses one of Oprah's favorite life lessons: You become what you believe. This message of empowerment is the theme of Amy's latest romantic comedy, "I Feel Pretty." Amy's character in the film, Renee, suffers from low self-esteem and a lack of confidence until a series of events allows her to shift her paradigm and believe in her own beauty and self-worth. Oprah describes Amy as a "modern-day warrior woman changing the way so many women perceive themselves and their lives." Amy also talks about her personal #MeToo story, her work to help prevent gun violence, and the one lesson that took her the longest to learn. Plus, she opens up about her recent marriage to chef Chris Fischer.