Everything Stardust added to the movie made it even better, while I think we can all agree the change to the My Sister's Keeper ending was the worst thing ever.
We recently asked the BuzzFeed Community to tell us which book adaptation storylines (or characters) that were created for the TV show or movie worked really well or not at all. Here are some of the best responses:
There are obviously massive spoilers ahead, and #17 mentions sexual assault.
1. LIKED: The Vampire Diaries turned Caroline Forbes into a strong, three-dimensional character.
2. DIDN'T LIKE: Harry Potter and the Deathly Hallows Part 2 turned Voldemort's death into an odd becoming-dust moment.
3. LIKED: The Twilight Saga: Breaking Dawn — Part 2 added the iconic battle where Carlisle seemingly dies before we find out it's not real.
4. DIDN'T LIKE: In Percy Jackson & the Olympians: The Lightning Thief, Percy, Annabeth, and Grover's quest was turned into simply a visit to three locations instead of a journey from New York to California.
5. LIKED: The Walking Dead added the character of Daryl Dixon, who didn't exist in the original comic books.
6. DIDN'T LIKE: In Daisy Jones & the Six, Daisy and Billy kiss and act on their attraction to each other.
7. LIKED: True Blood decided not to kill off Lafayette and kept him around longer than in the books.
8. DIDN'T LIKE: In Shadow and Bone, the Six of Crows — Kaz, Inej, Jesper, Nina, Matthias, and Wylan — were added to the Shadow and Bone trilogy plot instead of getting their own Six of Crows series.
9. LIKED: Game of Thrones added in moments between Arya and Tywin in Season 2.
10. DIDN'T LIKE: In the Harry Potter movies, Cho Chang's character was significantly reduced, and she was the one who told Umbridge about Dumbledore's Army in Order of the Phoenix.
11. LIKED: Daisy Jones & the Six added in a love story for Simone with Bernie and explored an LGBTQ relationship.
12. DIDN'T LIKE: The Hobbit films turned Tauriel from an incredible badass into a pointless love interest.
13. LIKED: The Lord of the Rings: The Fellowship of the Ring cut out Tom Bombadil because it would've felt out of place.
14. DIDN'T LIKE: Death Note changed the setting from Japan to the US.
15. LIKED: The Series of Unfortunate Events TV series added Mother and Father to Season 1.
16. DIDN'T LIKE: Charlie and the Chocolate Factory added in a backstory for Willy Wonka's dad.
17. LIKED: 13 Reasons Why developed Justin Foley's character and gave him a better storyline — until his ending.
18. DIDN'T LIKE: Percy Jackson: The Lightning Thief and Sea of Monsters aged up Percy, Annabeth, Grover, and more.
19. LIKED: This Is Where I Leave You perfectly trimmed moments from the book to make the movie more succinct and better.
20. DIDN'T LIKE: The Princess Diaries 2: Royal Engagement cut out Michael's character, and we lost the great moments of Mia realizing she likes him after starting college.
21. LIKED: Maze Runner: The Scorch Trials made the plot of the second book better and less boring.
22. DIDN'T LIKE: Ready Player One stripped down the amazing side characters so that it didn't make sense why they would all work together.
23. LIKED: Firefly Lane added more stories between Tully and Kate, in both the past and the present, that didn't exist in the books.
24. DIDN'T LIKE: The Chronicles of Narnia series was adapted into live-action movies instead of being animated.
25. LIKED: Coraline added the character of Wybie Lovat, who didn't exist in the book.
26. DIDN'T LIKE: Pretty Little Liars ended the series by having Spencer's long-lost twin, Alex, be A.D.
27. LIKED: Stardust added the character of Captain Shakespeare, who didn't exist in the original novel, and a much more satisfying ending.
28. DIDN'T LIKE: Miss Peregrine's Home for Peculiar Children changed Emma's powers and basically her very strong personality.
29. LIKED: Good Omens showed Crowley and Aziraphale's interactions throughout time before the events of the show.
30. And finally, DIDN'T LIKE: Everything about the ending of My Sister's Keeper, which was completely different from the original book.
Note: Some submissions have been edited for length and/or clarity.