Character Analysis
Dobby has a big moment in this film. When Harry asks for help by speaking into a mysterious shard of mirror that sometimes has a Dumbledore-esque blue eye in it, Dobby suddenly appears in Malfoy Manor to help.
How can he do that? Well, the protective enchantments around the place don't cover house elves—you know, since Death Eaters don't really think much of anyone who's not a wizard. Big mistake, Death Eaters.
Dobby transports Luna, Ollivander, and the rest of the gang imprisoned at Malfoy Manor out of captivity. And he sasses and disarms the Death Eaters in the process:
BELLATRIX: How dare you take a witch's wand? How dare you defy your masters?
DOBBY: Dobby has no master. Dobby is a free elf. And Dobby has come to save Harry Potter and his friends.
We don't get much of a chance to celebrate his heroics, though. Bellatrix throws a knife at Dobby and the others as they're Disapparating away, and it catches Dobby before they've fully disappeared. He dies as a result of his wounds.
It's super sad, since we've always had a soft spot for Dobby. But at least we know he died for a very worthy cause—we definitely need Harry and friends around to fight yet another day.