The ones I've thought of:
As You Like It (Shakespeare)
Midsummer Night's Dream (Shakespeare)
The Taming of the Shrew (Shakespeare)
The Prince and the Pauper
Casanova (the recently released movie)
Harry Potter and the Prisoner of Azkaban
ETA: Thank you so much for everyone's help. I needed a character to reference various movies and books and my mind was drawing a blank!