The Princess Diaries is a family comedy film directed by Garry Marshall. Sandra Oh plays the role of Vice Principal Gupta, a strict and no-nonsense educator at the high school attended by the main character, Mia Thermopolis. The film follows Mia, a socially awkward teenager who discovers that she is the heir to the throne of a fictional European kingdom. Sandra Oh's character adds humor and authority to the school scenes, providing a contrast to Mia's journey of self-discovery. The Princess Diaries is a charming and heartwarming film that celebrates individuality and the power of embracing one's true self.