With "Fantastic Beasts and Where to Find Them" about to come out you might want to brush up on your Harry Potter lore. You love the movies and books, but did you notice these plot holes in the Potter Universe?
"Harry had a broomstick lesson in his first week, and accidentally auditioned for the Quidditch Team. At no point in the next seven years did he have another. I know he hardly needed one, but not once in the remaining books do they mention another broomstick class for anyone" (Source).