Continuity mistake: When Cedric puts his name into the Goblet, you can see that his hair is wet on his fringe and stuck to his forehead in several clumps of hair. After he has stepped away from the Goblet, his hair has changed position. The clumps of hair are in different places and a gap has appeared. (00:28:00)
Continuity mistake: After Fred and George drink the aging potion, when the twins jump over Dumbledore's Age Line, in this overhead shot Hermione sits at the edge of the long bench, with the closed book and crossed legs. Yet, in the next shot, as Fred and George begin congratulating each other, Hermione sits a few feet away from the edge, still with the closed book and crossed legs. (This is before she moves her seat and opens her book.) (00:29:00)
Visible crew/equipment: After Fred and George drink the aging potion and jump within the "age line", right before they say, "Ready?" and drop their names into the goblet, at the start of this shot the actor's T-mark is briefly visible on the floor, just before one of the twins promptly steps to that area. A bit of a second T-mark is briefly seen as well, to its right, also where the other twin soon stands. (00:30:10)
Continuity mistake: The way Dumbledore catches Krum's name from the Goblet changes instantly. (00:30:45)
Continuity mistake: The size of the paper that has Harry's name on is considerably smaller when Dumbledore gives it to Harry. (00:32:20)
Continuity mistake: When Harry's name has just come out of the Goblet, we see a shot of Hermione with Ron in the background. In this shot, Ron is looking up at Hermione. A second later from a different angle, Ron is looking down, then moves his head to glare in Harry's direction. Nobody can move that fast. (00:32:45)
Continuity mistake: In the dorm, after Ron moans, "Yeah, that's me, Harry Potter's stupid friend" as Harry leaves his bed and walks to Ron, there is a single rectangular window beside his bed and another window about a foot above it. Later, after the Yule Ball, in the exterior zoom-in shot the crow flies toward the side-by-side double window, arched at the top, as it heads for the window sill, and in the next interior shot, the crow lands on the sill as Harry sleeps beside that window. (00:38:30 - 01:22:30)
Continuity mistake: When Rita grabs Harry to interview him, in the next shot, as the Quick-Quotes Quill springs up, the paint can, brushes, etc are on the steps. Their positions change in the Quill's first close-up, as it writes in the notebook. (00:39:55)
Continuity mistake: In the Gryffindor common room, after Ron heads up to the dorm, Harry realizes Sirius has gone. In the close-up of the Daily Prophet, the unwrinkled headline "Teenage Tragedy" is displayed prominently as the newspaper burns up, whereas in the previous shot (before Harry's close-up) the "Teenage" part of the headline is unseen. (00:45:10)
Continuity mistake: Just before Moody turns Draco into a ferret Harry has a confrontation with him and pushes him. In the first shot right before Harry pushes him they are almost face to face. Cut to behind Harry after he pushes him and Draco has been pushed back several feet. Cut to behind Draco just as Harry says 'he's vile and cruel' and they are now almost face to face again. (00:48:40)
Continuity mistake: In the Triwizard champions' tent, Rita's photographer captures the moving photograph of Hermione and Harry hugging, and subsequently letting go of each other. Later, when Hermione reads from The Daily Prophet, just before Ron opens his package, in the close-up of the newspaper their hug, the release, and where they both stand are entirely different in the moving photograph. (00:54:50 - 01:05:20)
Continuity mistake: When Filch fires off the cannon for Cedric to go face his dragon in the first task, you see Karkaroff standing on Krum's left (viewer's right). In the next shot, the close-up of Cedric, Karkaroff is now on Krum's other side. (00:55:05)
Continuity mistake: Just as Harry flies back into the stadium during the first task, Fred and George's case is open in one shot and closed in the next. (01:00:00)
Continuity mistake: When the Horntail is out for Harry's blood, in the overhead shot, as he hangs on the window frame his sleeve is pulled up showing his bare arm. However, in the next close-up as he still grips the frame, his sleeve is tucked tightly into his glove. (01:00:50)
Continuity mistake: As the Horntail nears during the challenge, when Harry clings to the window frame, the characteristics of the broken windowsill he stands on changes depending on camera angle. (Not due to more breakage.) (01:00:50)
Continuity mistake: After being knocked off his broom by the Horntail, when Harry falls from the first window to the one below, tiles break off leaving a few askew. However, in some following shots the tiles are back and straight. (01:00:50)
Continuity mistake: In the Great Hall, when Harry dribbles on himself, the plate to Hermione's right (as she holds The Daily Prophet up) has food and utensils lying on it. However, in the following shots, there is only an empty plate with utensils set on both sides, beside Hermione. (01:05:00)
Continuity mistake: During breakfast in the Great Hall, after Harry dribbles on himself, he and Ron are seated right beside one another and likewise their plates. When Nigel brings the box, all of a sudden there is a huge gap between them and a convenient open space on the table to place the box. (01:05:05)
Continuity mistake: In the Great Hall, when Ron takes the dress robe out of the box, there is a plate beside Hermione which has two utensils on its left side and one utensil on its right. However, when Harry says, "It does match your eyes," and in another following shot, there is only one utensil on the plate's left side - the knife is now on the other side. (01:06:00)
Continuity mistake: In the Great Hall, after Ron receives his "dress" and Harry says, "Well it does match your eyes. Is there a bonnet?" the toast caddy on the table in front of Harry moves farther down the table, between shots. (01:06:10)
Answer: Voldemort's spell undid the Sacrificial Protection that Lily bestowed on Harry, but the Bond of Blood is a separate protection bestowed if the person sacrificing their lives is a relative. THAT spell is still renewed as long as Harry keeps returning to the Dursleys until age seventeen. Voldemort has removed one protection, but a second is still in place.
Captain Defenestrator