And in the third book the names of some horses and characters (like the soldier who befriends Pippin) aren't even show in the movie.
Also, some characters who appear in the book (Like some Dunnedain rangers who help Aragorn to find the spirits) didn't appear in the movie.
I know that the books have more details, history and other characters, but it's impossible to put an 500 page book into an 3:30 hours movie.
Even with somethings deleted in the movies, I still like the lasts 2 movies more, because the first don't has the epicness, legendary battles, the buffed Gandalf, the city of Minas Tirith, etc. And, personaly, I'm preffer watch 6.000 horseman clashing into thousands of orcs, mumakhils and trolls fighting an epic battle for the destiny of the world instead of seeing an small party fleeing from goblins into an underground city.
I'm not talking that the first movie was bad, instead, it was an very good movie, it in my list of favorites, I'm saying that (in my opinion) lacks the epicness of the other 2 movies.