I forgot the name of the birdlike creatures that try to capture Eragon in the begining of the book, but in the movie, they jsut look like weird creatures made out of worms or something. And they die halfway in the movie! >
They haven't even died in the book. And the plot was moving along too fast, which is probably why they might not make a sequal movie, that and that it didn't get alot of boxoffice succes.
And i don't know anything else, it jsut didn't seem to be nearly as good as the book.
EDIT: Oh, and you know the werecat? It wasn't even indroduced >_> And the city or town where the werecat lived in didn't even look like it was in the book. Uhhh, and they didn't have that catheral fight scene from the book.