Lord Voldemort (Ralph Fiennes) is on the march, but new Defense Against the Dark Arts teacher Dolores Umbrage (Imelda Staunton) is in denial (“You have been told that a certain dark wizard is at large. This is a lie!”). Harry and his friends form “Dumbledore’s Army” to defend Hogwarts (“Every great wizard…has started out as nothing more than what we are now. If they can do it, why not us?”)
