1. In the movie, Leslie went straight to Jess' class but in the novel, Leslie did a short introduction when Jess is running.
2. In the movie, Leslie went straight into the race but in the novel, Leslie has a short arguement with Gary Fulcher before the race.
3. In the movie, May Belle was thrilled to hear that Leslie is giving her something but in the novel, May Belle was in doubt for a while.
4. In the movie, the racing car set for Jess is meant for his birthday but in the novel, the racing car set was for Christmas.
5. In the movie, Leslie and Jess exchanged birthday presents before the play of Janice but int he novel, they thought of a play for Janice before the exchanging of Christmas presents.
6. In the movie, Janice felt sad when Willard was not interested in her but in the novel, Janice felt angry when Willard was not interested in her.
7. In the movie, a cleaner went into the classroom when Jess put the note in Janice's table but in the novel, a teacher came in when Jess put the note in Janice table.
8. In the movie, a tree hit the kingdom of Terabithia caused by a giant troll but in the novel, it only said about the giant troll.
9. In the movie, the bus driver is a male but in the novel, the bus driver is a female.
10. In the movie, Jess did not leave the bus after seeing the dog but in the novel, Jess left the bus right after he saw the dog.
11. In the movie, Prince Terrain was not given to Leslie as a Christmas present but in the novel, Prince Terrain was given to her as a birthday present.
12. In the movie, Miss Edmunds music lessons was conducted in the classroom but in the novel, Miss Edmunds conducted her music lessons on a old rug in the teacher's room.
13. In the movie, there was only one race that Leslie won but in the novel, there were several races won by her.
14. In the movie, Janice Avery met Willard in front of the school, in front of all her friends but in the novel, Janice Avery was supposed to meet Willard behind the school secretly.