Great book, terrible movie. They focused an exceptional amount on the relationships developing between teenage girls and boys, turning a story that encompasses all age groups into a teenage soap opera. We never saw Snape teach Defense Against the Dark Arts and only two memories of Voldemort were visited. The action scenes, such as the one in the cave, were rushed and unimpressive. Instead of using the short amount of time they had for explanations, the writers of the screenplay decided to spend precious five-ten intervals on ridiculous flirting scenes or random, action-packed battles that were nowhere to be found in JK Rowling's book.