Steven Spielberg was supposed to be the director of the first Harry Potter installment, but he couldn't come to an agreement with the author of the book. ¹⁾

J. K. Rowling personally chose Robbie Coltrane for the role of Hagrid. ²⁾

Tim Roth was originally supposed to play Professor Snape, but due to a previous agreement to participate in the film “Planet of the Apes”, he had to drop out. Therefore, J. K. Rowling personally chose Alan Rickman for the role. ³⁾

The book author herself was offered to play the role of Lily Potter. However, she did not accept. ⁴⁾

Robin Williams and Rosie O'Donnell wanted to take part in the film completely free of charge, but they were not involved because the cast selection was based on the principle of “British Only”. ⁵⁾

Initially, the scenes at 4 Privet Drive were filmed in Winkfield on Picket Poste Close, but from the second part, they were moved to the film studio. ⁶⁾

In the “Harry Potter and the Chamber of Secrets” part, as many as 14 Ford Anglias were destroyed to shoot the scene where Harry and Ron crash into the Whomping Willow. ⁷⁾

The letters that came from Hogwarts to Harry were handwritten by the film crew (over 1000 letters). Unfortunately, they were too heavy for the owls, so they had to be re-written. ⁸⁾

It took six months to train the owls that delivered letters for Harry to the Dursley house. ⁹⁾

The construction of Bellatrix Lestrange's vault door took three months. ¹⁰⁾

The Harry Potter adventure books have been translated into 70 languages. ¹¹⁾

In the storefronts on Diagon Alley, the visible decorations and objects were handmade specifically for the film. ¹²⁾

The book's creator of the Philosopher's Stone, or Nicolas Flamel, is an authentic figure of the famous alchemist born in 1330. Legend has it that he invented a magic potion that turned metal into gold and ensured immortality. ¹³⁾

The author revealed that initially Harry was supposed to be Hermione's boyfriend. However, she eventually changed her mind and paired her with Ron. ¹⁴⁾

The name of Harry Potter's family - Dursley is the name of a town located in the county of Gloucestershire. It was a place hated by J. K. Rowling, which she visited in her childhood, so that's how she named the disliked book characters. ¹⁵⁾