James Corden asks his “The Prom” co-stars about their big moments in the film, which required Nicole Kidman to rehearse relentlessly to master a staircase in heels. And Kerry Washington recalls how she ignored James’s advice and decided to learn the final dance number, which was the right call. And after Nicole recalls auditioning to Annie as a child, Kerry gives us a message of hope heading into 2021 that we all need to hear.