Overview: Nicole Kidman ("Being the Ricardos") and Kristen Stewart ("Spencer") discuss the challenges of taking on the roles of famous real-life people. Marlee Matlin ("CODA") and Bradley Whitford ("tick… tick…BOOM!") reminisce about working on the TV show "The West Wing." Mahershala Ali ("Swan Song") and Bradley Cooper ("Nightmare Alley") compare notes on being producers and leading men.