Continuity mistake: There are two scenes during which Harry is shown having visions of the Dept of Mysteries while he is asleep. The first scene occurs after Harry's confrontation with Seamus in the Gryffindor common room. There are shots of Harry lying in bed wearing a short sleeve, crew neck tee shirt, but when he is startled awake by the vision of Voldemort, he sits up wearing a buttoned henley tee. The next day is the first day of Defence Against the Dark Arts class with Umbridge. That last shot of Harry in the henley tee shirt was cut from a later scene. Later in the film, when Harry has the vision of Arthur Weasley's attack, he is wearing the henley tee shirt. (00:34:00 - 01:09:35)Super Grover
Continuity mistake: At 12 Grimmauld Place, when Harry and Sirius are in the room with the Black family tree, as Sirius says, "My parents with their pure-blood mania," the area of the wall with both Sirius's and Andromeda's names and burned off pictures is quite visible (as in other shots as well). Bellatrix's name is beside Andromeda's (her sister), but there is no picture over Bellatrix's name banner in this shot (only branches and leaves), nor in any other shot, except in the previous close-up, as Sirius says, "My deranged cousin," where there is a picture of Bellatrix over her name. (01:13:25)Super Grover
Revealing mistake: In the Forbidden Forest, HRH are introduced to Grawp. Just as the giant lifts Hermione off the ground, in the shot from behind her, Hermione's legs disappear below her calves; the digital lines are actually visible. Slow-mo is not necessary. (Only visible on fullscreen DVD.) (01:29:40)Super Grover
Kingsley Shacklebolt: You may not like him, Minister, but you can't deny it, Dumbledore's got style.
Question: When Umbridge has Harry, his friends and the Slytherin students in her office, she asks Harry if he was going to warn Dumbledore. When he says he wasn't, she responds by slapping him in the face. In the background, Draco has a look of shock on his face. Considering the fact that he hates Harry, why would he react this way?