1- Both Harry and JKR's birthdays are on July 31st
2-The actress who played Moaning Myrtle was 37 years old making her the oldest actor to play a student.
3- Rowling's publisher suggested that she use initials rather than her full name "Joanne Rowling", in order to appeal to male readers. She chose JK, borrowing the 'K' from her grandmother, Kathleen.
4- Only Alan Rickman knew what Snape's fate was because Rowling told him.
5- Rowling is the first person to be a billionaire (US dollars) by writing book and lost that status because she donated the money to charities.
6- Daniel Radcliffe and Rupert Grint had a crush on Emma, Emma had a crush on Tom and Tom had a crush on Helena Bonham Carter (Bellatrix)
7- For his audition Rupert made a rap about him self.
8- A bookie in London had to pay out $100,000 because people were betting on whether Harry would or wouldn't die (which he did both).
9- The Draco/Voldemort hug wasn't in the script. They did 25 takes of the scene and Ralph hugged Tom in one of them.
10- At various points in the Philosopher's Stone you can see Emma mouthing Daniel and Rupert's lines.
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Harry Potter Facts
AcakDo you think you know about the amazing magical world of Harry Potter? Well think again. Here is Harry Potter facts you might not know!