For over 20 years, the Harry Potter movies have brought J.K. Rowling’s magical world to life, but even the most devoted fans know the movies can’t capture everything the books offered. From missing side characters to simplified plots, the cinematic adaptations left crucial storylines and character development on the cutting room floor. HBO's upcoming Harry Potter remake has the opportunity to do the books justice, as long as they don't make the same mistakes as the movies.
