There are popular franchises, and then there’s "Harry Potter." The Wizarding World has entertained the public for decades, starting with J.K. Rowling’s novels and growing into an eight-film movie franchise, theme parks, and even stage plays. But the movies will always have a special place in fans’ hearts, partly thanks to the great performances given by the cast. Although there was a time when Harry Potter’s Alan Rickman was hit by “day-long melancholy” while working on "The Prisoner of Azkaban."

Late actor Alan Rickman played Severus Snape to pitch perfection throughout the "Harry Potter" movies, being privy to his character’s true nature years before the books made it public knowledge. But that doesn’t mean that he didn’t have struggles during his years in Hogwarts. An excerpt from his journals (acquired by The Guardian) reveals that Rickman had some issues while filming the third movie in the franchise, "The Prisoner of Azkaban."