Harry Potter and the Deathly Hallows: Part 2 — Harry Potter, along with Ron, Hermione (disguised as Bellatrix Lestrange) and Griphook, go to Gringotts Bank to steal Penelope Hufflepuff's Cup, which is a Horcrux. On the way, they get into an accident and Griphook says that they will have to find another way. At this time, they are found by agents of the Death Eaters — the bank's new security. Having cleared the way, Harry begins a battle with the dragon guarding Bellatrix's safe. After the battle, Harry takes the cup and Griphook abandons them, arguing that he promised to "help get into the safe, not get out of it." Harry, Ron and Hermione board the dragon and fly away from the bank.