Harry Potter & The Deathly Hallows: 12 HUGE Changes To The Battle Of Hogwarts

The Carrows are another large part of the final book that are pretty much relevant only by quick mentions of their names in the film, and they are emblematic of the terror of Snape's reign over Hogwarts and the extra threats Harry faces within the Hogwarts walls before the Death Eaters even arrive for the battle.

In the film, Neville briefly mentions that the Carrows have been installed at the school as new teachers and that they favour severe punishments on students that disobey, referring to cuts on his own face as evidence. They are seen in the background of scenes, but never given any key moments of their own.

In the book, Harry faces the Carrows directly when in search of the Diadem in the Ravenclaw common room, which Alecto Carrow is guarding. Rather than simply giving Harry a clue on a spiral staircase, Luna accompanies Harry on this part of his search, and is responsible for Alecto losing consciousness as the result of a stunning charm... but only after Alecto has summoned Voldemort by pressing her dark mark to convey that Harry had been captured.

Once her brother Amycus gains entry to the tower, he plans to pass the calling of Voldemort onto the students due to his fear of repercussions if Voldemort himself appears without Harry ready to be killed. He also spits in the face of McGonagall, which causes Harry to respond with rage enough to summon a cruciatus curse.

The almost entire removal of the Carrows from the Battle of Hogwarts in the films means the threat Neville explains is heard not seen, the fear of Voldemort's own followers towards his wrath has one less example, and Harry never performs an unforgivable curse to protect those he cares about.