Casting the leading trio at such a young age was always going to be a risk. Miraculously, however, all three actors were exceptionally talented individuals.
Whilst the performances in The Philosopher’s Stone were a little up and down, Daniel Radcliffe, Rupert Grint, and Emma Watson were all terrific at their respective roles by the third movie.
As well as nailing the bossier, more intellectual side of Hermione, Watson also adapted well to Hermione’s changing persona, particularly in The Goblet of Fire. During the Yule Ball, for instance, Hermione demonstrated a more relaxed, romantic side to her, which Watson captured smoothly without abandoning the essence of her character.
She also excelled in The Half-Blood Prince when it came to Hermione’s reaction to Ron and Lavender’s relationship. It was impossible not to feel sorry for her as she welled up with sadness after the pair of them got together.
Therefore, despite the increasing level of nuances needed for her role, Watson always managed to execute the necessary emotion for any given scene.