And there cannot be a Harry Potter movie without a video game adaptation. But it was not until 2001, when the first film Harry Potter and the Philosopher's Stone was released, that she really achieved the fame she has today, and Hollywood worked its magic, turning her into a cinematic phenomenon as well. Since its publication, it has sold over 500 million copies worldwide, making it a cultural phenomenon. Rowling knew what she was doing when she decided to write, in 1997, over 20 years ago, her first novel and turn it into a literary saga.