* Lovegoods in 4th book! - The Lovegoods were mentioned in GoF

Summary:
I noticed that in the 3rd or 4th chapter of the 4th book they mention the lovegoods couldnt get tickets when they were with the portkey on top of the hill and Mr. Diggory asked if there was anyone else coming.

I thought this was neat and didnt make the connection until when the 5th book came out.

Article:

Also, I have noticed they make mistakes in the movies like at the table Hermione says to Nearly Headless Nick "Nearly Headless how can you be Nearly Headless?" when it was really in the book Seamus Finnigan who said that.

Of course I have nothing against the movies but it always bugged me when they did something like that.