"I'm just trying to live my life to the best version of myself that I can possibly be." Demi walks us through her legendary career, discussing her roles in 'Blame It On Rio,' 'St. Elmo's Fire,' 'Ghost,' 'Mortal Thoughts,' 'A Few Good Men,' 'Indecent Proposal,' 'G.I. Jane,' 'Charlie's Angels: Full Throttle,' 'Margin Call' and her latest film 'The Substance.