Colleen Hoover was responsible for some of the changes in the movie.

Even if you haven’t read the book, you’re probably familiar with it thanks to#BookTok.

Movie adaptations of books don’t always meet readers' expectations, leading to mixed reviews.

Four TikTok screenshots: Colleen Hoover's book "It Ends With Us" on a bed, three women (ellie.reads, Lovely Reads, and another user) reading or reacting to the book

This is exactly what happened withIt Ends With Usafter it hit theaters last weekend.

This is mostly because die-hard fans (including myself) noticed several differences between the book and the movie.

Here are 14 differences between theIt Ends With Usmovie and the original novel:

Warning: Spoilers ahead!

Blake Lively looks pensively out of a car window while seated in the back seat

1.The movie’s opening scene differed from the book’s beginning pages.

2.Lily’s eulogy to her father was changed in the movie.

3.The characters appear older in the movie compared to how they were described in the book.

A smiling woman with wavy hair and a black winter coat is outside with a city skyline in the background

5.Lily doesn’t have a roommate in the movie like she does in the book.

6.The name of Atlas' restaurant in the movie was changed.

7.Ryle’s proposal in the movie differs from the proposal in the book.

Jenny Slate and Blake Lively laugh together at a table filled with flowers and laboratory glassware in a vintage-styled room

9.Some domestic violence scenes were portrayed differently in the movie compared to the book.

In the movie, he shoves Lily seconds after he touches the hot surface.

10.Lily’s journal entries to Ellen DeGeneres aren’t in the movie at all.

A man and a woman sit on a rooftop couch at night, face to face and smiling, with a city skyline in the background. Names unknown

11.How Lily calls Atlas for help differs from the book and the movie.

14.The movie ended with what felt like a cliffhanger compared to how the book ended.

If you or someone you know is in immediate danger as a result of domestic violence, call 911.

Blake Lively stands behind a counter wearing a patterned shirt and overalls. She looks off to the side, with a background of plants and a mirror

Blake lively (left) talks to Brandon Sklenar (center) in a busy bar. He is wearing a dark t-shirt and an apron, standing with his arms crossed

Man and woman smiling at each other in a dimly lit setting

Justin Baldoni and Blake Lively share an emotional moment, gazing into each other's eyes.

A man with wavy dark hair and a serious expression looks at a woman with blonde hair from across a table

Blake Lively appears with tousled hair, a small cut on her forehead, and a serious expression. She is indoors with a blurred background

A young Lily looks pensively out of a multi-paned window from inside a room, appearing contemplative

Two people are conversing; man with short brown hair is talking, while a woman with long blonde hair is listening, her back facing the camera. Scene from a book-related event

A man and woman, Blake Lively and a man, are facing each other closely, smiling as they dance intimately, with a soft light glowing behind them

A woman and man share an emotional moment in a room. The woman looks pensive, and the man gently touches her face

Blake Lively is in an outdoor market scene, wearing a plaid shirt, a denim jacket with a shearling collar, and walking among other people