You got 18 out of 20 right! Supreme Potterhead There is no detail that slips past you — you know even the subtlest of differences between the books and movies! Now, go reward yourself with a Butterbeer.
Hogwarts Scale Model - "Jose Granell, model supervisor, unveils a model of Hogwarts castle at the Warner Bros Studio Tour, in Watford, London, on March 1, 2012. The Hogwarts castle model was built for the first film "Harry Potter and the Philosopher's Stone", it was created for aerial photography and was digitally scanned for CGI scenes. It took 86 artists and crew members to construct, it measures over 50 feet in diameter and has over 2,500 fiber optic lights. (AP Photo/Jonathan Short)"