Once Upon a Holiday (2015) Once Upon A Holiday is an engrossing TV movie that centers around a royal princess who is tired of her diamond-studded privileged life and the royal responsibilities that come with being a princess. Desiring to see how regular people live, she finally gets the courage to leave it all behind by escaping one day, which puts her in the path of a wonderful young man and good Samaritan who sweeps her off of her feet.