Rarity has loved acting and designing costumes since her first school play. She delivered wonderful costumes for that musical. Even though she had never been on stage before, she really wanted to try being in one of the real movies that she watched every week or so.
When she gets her golden opportunity, she has to audition. Maybe she gets set into the world of filmmaking and design. But there is that possibility that she will go back to her boring everyday life as an Element of Harmony and a dressmaker. She does not want that to happen.