15 Harry Potter Movie Mistakes

During the flying lesson scene, some strands of Hermione's hair have very deep crimps on both sides of her face in a few shots. In other shots the crimps are far looser and still in additional shots, there are no crimps whatsoever.

When Ron and Harry are sating on the train, Ron's hair begins with a centre parting, but suddenly changes to being parted on the side

After Quirrell announces there is a troll in the dungeon, Dumbledore shouts, "Silence!" and soon continues, "Teachers will follow me to the dungeons." In the shot that follows of McGonagall, you are able to see the wires that the candles hang from.

As Ron's luggage cart/trolley slams into Harry's, Ron's trunk is visible. As Ron begins to flip over in the overhead shot, the trunk has five strips of brown trim - two on the edges and three in the middle. When Harry and Ron moan and get up, Ron's trunk now has four strips of brown trim - two on the edges and two in the middle.

Rushing to make Hogwarts Express at the train station, the shot opens as the camera pans Ginny's trunk and TWO marks come into view. While Ginny and Mr. Weasley push her trolley, Mr. Weasley (Mark Williams) is cued and begins to say, "10:58, come on, come on!" just as the actor hits his tape MARK on the ground below, while Percy's (Chris Rankin) trolley hits its tape mark, so Harry is visible behind him, and cues Mr. Weasley to continue speaking. In the shot when Mrs. Weasley says, "Okay" for Ginny to go and in the shot as Harry says, "Let's go," their marks are obviously gone. (Visible on DVD fullscreen.)

In the dueling scene, when Snape pulls Malfoy back onto his feet, a cameraman is visible on the far left of the screen.

When Sirius flies off on Buckbeak, the ground on which he takes off from is a perfectly clean stone ground with nothing on it. Yet after Sirius has flown off, Harry and Hermione run across the same ground, only now it is covered in dead leaves, grass and mud, etc.

When Hermione and Harry go back in time, they duck and hide from Malfoy (after being punched) and his friends as they leave. The rectangular outline of a power pack (battery pack for hidden cordless mic) is visible at her lower back, under her pink jacket. It is visible in a few shots, including when they are at the pumpkin patch. The outline of Harry's power pack at his back is visible as well, as he bows to Buckbeak at the pumpkin patch, when they rescue him.

In the first exterior shot through the back patio door, as the Dursleys eat, the kitchen window and patio set below are visibly quite far from the white patio enclosure. Later, when Vernon falls to the ground as Marge floats away, Petunia runs to him and now the kitchen window, on a supposed brick wall, is actually right beside the white patio enclosure! Adding to the absurdity, the entire house is in the opening shot of the film and that middle part of the wall is conspicuously missing.

After the Yule Ball, when Neville walks into the dormitory, his shoes hang round his neck by their laces. While he says, "You alright Harry?" in Neville's first close-up his black collar lies flat, the shoes' laces hang round his white shirt and the heels touch. In the second shot his black collar is flipped up around his neck, the shoes' laces hang round the black collar and heels are about four inches apart. Then, in the third shot it reverts back, as in the first shot.

Straight after the second task Hermione wraps her own white towel round Harry, but between shots it jumps back to her shoulders, then back to Harry's several times.

When Fred or George passes the note to Ron in the Great Hall, encouraging him get a date before all the good ones are gone, the position and style of writing on the note changes between shots. The number of lines changes from four to three and the words are written lower on the paper when Ron reads it.

At the playground, when Dudley and Harry have a confrontation, Dudley wears black shorts with large white designs of words and numbers. When Dudley and Harry enter the tunnel and then later, when yumpy Dudley is in his house, Dudley's shorts have completely different designs (though it is the same type of shorts).

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.

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 DADA 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.