The Princess Diaries (2001)

Mia Thermopolis is a teenage klutz who's openly mocked by the popular Lana Thomas. Mia's life takes a dramatic turn, however, when her mom announces that her late biological father was in actuality the crown prince of a small European nation, Genovia. With her friends Lilly and Michael Moscovitz in tow, she tries to navigate through the rest of her 16th year.