Here are some key differences:
* Characters: The movie introduces several new characters that are not in the book, like Passepartout's love interest, and modifies the personalities of some existing characters.
* Plot: The movie takes liberties with the plot, adding subplots, changing the order of events, and simplifying certain aspects.
* Setting: The movie is set in a more stylized, romanticized version of the Victorian era, while the book is more grounded in realism.
* Tone: The movie is more comedic and lighthearted than the book, which has a more adventurous and suspenseful tone.
* Ending: The movie's ending is different from the book's ending.
While the movie captures the spirit of the book, it is a different story in its own right. If you've read the book, you'll likely enjoy the movie, but don't expect it to be a faithful adaptation.