How Everything Works on Instagram: "In Harry Potter and the Sorcerer’s Stone (2001), sharp-eyed fans have noticed that in a few scenes, Emma Watson can be seen quietly mouthing her co-stars’ lines. At just 11 years old, Watson was so enthusiastic about her role as Hermione that she memorized not only her own dialogue but nearly the entire script. In later interviews, she admitted it was simply her excitement and inexperience showing — she hadn’t yet learned to separate rehearsal habits from the