One of the best known fantasy franchises today, Harry Potter became a hit soon after the first book was published in 1997. However, it became even more popular among moviegoers when the first book was adapted into a movie in 2001. The entire series is now a classic, and its fans still return to it over and over.

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As expected, not everything that appeared in Harry Potter and the Sorcerer's Stone made it into the film adaptation. Sometimes the filmmakers were limited by length, sometimes by the fact that the actors didn't quite look like their book counterparts. These changes didn't lower the film's quality, but it's still interesting to explore the changes that occurred as the story moved from the books to the screen.

10 Hermione's Look

Harry Potter Hermione in the train coming to Hogwarts for the first time

In the Sorcerer's Stone, Hermoine's movie counterpart, portrayed by Emma Watson, was more polished than readers might have expected. In the books, Hermione does have bushy hair and big teeth. Though her hair is somewhat messy in the film, it doesn't do justice to the book; meanwhile, her teeth are pretty average.

This might not seem like such a big deal, but her book descriptions emphasize that Hermione doesn't really pay much attention to her appearance. Instead, she's focused on studying and becoming a better witch.

9 Hagrid Has Sirius's Motorbike

Harry Potter Hagrid drives Sirius's bike

When Hagrid shows up to deliver baby Harry to the Dursley, he's driving Sirius Black's flying motorbike. Sirius borrowed the motorbike to Hagrid in the Godric's Hollow – before he was wrongfully arrested him for the Potters' death.

The film doesn't mention how Hagrid came to own his bike, even though it would add more backstory to the plot and Sirius's character.

8 Harry Meets Draco Sooner

Harry Potter Draco meets Harry

The rivalry between Draco Malfoy and Harry Potter is famous. When they meet at Hogwarts for the first time, Draco insults Ron and then offers Harry his friendship. Harry rejects Draco and makes an enemy as a result.

In the book, though, they meet in Diagon Alley when purchasing their school robes. However, Draco doesn't a better impression on Harry in this scenario, since he acts arrogantly and insults Hagrid. It would have been interesting to see them clash without the presence of others.

7 Quirrell's Death

Harry Potter Quirrell dies

Even though Harry, Hermione, and Ron suspect Snape of being their main enemy in the first book, he's not. Instead, it turns out it's Quirrell who works with Lord Voldemort. After a series of magical tests, the trio manages to defeat him.

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However, Quirrell's means of demise changes in the film, where Harry touches Quirrell's face and Voldemort can't stand it. In the book, Quirrell meets his end when Voldemort decides to leave his head instead. It's possible the film changed it because a burning face looked more dramatic onscreen.

6 It All Starts With Vernon

Harry Potter Vernon Dursley reads the letter from Hogwarts

Vernon Dursley has a somewhat bigger role in the first book than he does in the film, and he plays a big part at the beginning of the story.

Vernon is the one who first notices something strange is happening. The wizarding world is celebrating Voldemort's presumed demise, and even the muggles spot something's out of the ordinary. That doesn't sit well with Vernon, who doesn't want to have anything to do with magic – just like his wife. If this scene appeared in the film, it would have shed more light on Vernon's character.

5 Going After Quirrell

Harry Potter the enchanted chess

Before the trio can reach and defeat Quirrell, they have to undergo a series of challenges. One such task involves calming a three-headed dog, while another involves winning an enormous and dangerous game of chess.

One task that didn't make it into the film is a logic puzzle, in which Harry and Hermione must solve a riddle to choose the right potion. The correct one allows the drinker to pass through a wall of flames, moving toward their goal. It's more than possible the filmmakers didn't include this task since it wasn't as visually exciting as the other tasks were.

4 Harry Looks Like Lily

Harry Potter has blue eyes

One of Harry's defining features in the books (other than the scar on his forehead) is his green eyes. He inherited them from Lily, and many characters who knew her remark on the resemblance. In the films, though, Harry has blue eyes.

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This wasn't for lack of trying on the filmmakers' part; however, Daniel Radcliffe couldn't stand wearing contact lenses. They irritated his eyes too much. So for the sake of his comfort, he didn't have to wear them for the film.

3 Harry And The Mirror Of Erised

Harry Potter Harry sees his parents in the mirror of Erised

The Mirror of Erised is a fascinating but dangerous magical object. It allows the person who looks into it to see what they desire the most. In the film, Harry sees himself with his parents. But in the book, Harry sees not only James and Lily but also his ancestors.

The book describes Harry gazing at his grandparents and great-grandparents, who all resemble him in different ways. Since he never got to know them, it would be touching if he got to see them at least this way.

2 Charlie Weasley Helps Save Norbert

Harry Potter Hagrid's dragon Norbert

Of all the Weasley siblings, Charlie is the only one who doesn't appear in the films, which feels like a missed opportunity. Charlie actually has a bit part in the first book when he helps the trio take Hagrid's dragon Norbert away from Hogwarts.

Since the audience saw all remaining members of the Weasley family in the film (other than Bill), it would have been appropriate to give some space to Charlie as well.

1 How Harry Leaves For School

Harry Potter Harry arrives to the platform 9 3/4

Finally, the film changed the details on how Harry gets to the train station from which he leaves for Hogwarts. Hagrid takes Harry to King's Cross in the film, but in the book, Dursleys accompany Harry to the train station.

They do this partly because they want to make sure he really leaves, but it also gives them the chance to insult Harry one last time before he goes. Luckily, once Dursleys are gone, Harry meets the kind and loving Weasley clan and his new best friend, Ron.

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