You're probably used to hearing — or saying — that a film adaptation of a book is always going to be worse than the book. While this is true pretty often, it's not always the case. Some movies are actually better than the books they are based on!
Matthew Quick's novel of the same name is an excellent depiction of mental illness, but David O. Russell's perfect cast brought this book to life. Bradley Cooper, Jennifer Lawrence, and Robert De Niro are what made this film so powerful.