Continuity: The cork board, hanging over Harry's bed in the Dursley house, significantly changes its position on the wall, as seen when Harry sits on his bed to speak with Dobby. The location of the thumbtack pushed into the top point of the Gryffindor pennant, as well as the angle of the other point, also change throughout the scenes in Harry's bedroom.

Continuity: There are eleven vertical front bars on Harry's window, five on each side of the center bar. Ron attaches the hook to the bars on Harry's window and when he says "Let's go!" we see the hook between the third and fourth bar on the right. Yet in the next shot and also in the shot looking up as the bars fall, the hook is between the fifth and sixth from the right.

Continuity: When the Weasleys and Harry get their Hogwarts letters, there is a shot from behind the twins. If you watch Mrs Weasley you will see that Harry gives her his Hogwarts letter. She holds it with one hand. When the shot changes she is holding it with both of her hands.

Continuity: When Harry is in Borgin & Burkes in Knockturn Alley, he approaches the glass dome with skulls sitting on the shelf and to the right is a large round mirror sitting atop a cabinet. When he walks away after freeing his hand from The Hand of Glory, in this wide shot there is now a very tall, ornate, wrought iron fixture behind him that stands beside the shelf, in front of the round mirror and cabinet, that was not in that previous shot.

Visible crew/equipment: Just arriving at Diagon Alley Hagrid says, "I was looking for Flesh-Eating Slug Repellent. They're ruining all the school cabbages." In the next shot Hermione exits the shop and runs towards Harry. On the ground is Dan Radcliffe's (Harry) red mark, which he promptly steps on just before Emma Watson (Hermoine) glances down and steps on her own black tape mark. (Visible on fullscreen DVD.)

Visible crew/equipment: In Flourish and Blotts, when Lockhart says "Which, incidentally, is currently celebrating its 27th week atop the Daily Prophet bestseller list," the overhead camera pans up. As the camera passes his feet, Tom Felton's (Draco Malfoy) mark, two long strips of white tape are perfectly visible on the balcony floor where he stands.

Visible crew/equipment: 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.)

Revealing: When Harry and Ron run at the wall to get to Platform 9 3/4 if you watch Hedwig's cage when they tumble over you can see a toy bird that is glued onto the perch.

Continuity: 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.

Continuity: As they fly over Hogwarts Express Ron yells, "Take my hand!" the corner rubber trim of the door frame is peeling up. When Ron grabs hold in the shot facing Ron, their hands are positioned differently than in the next close-up where it's visible that the frame of the door is fairly clean, there are two parcels behind the seat, etc. Yet when Ron grabs hold after Harry says, "...Your hand's all sweaty," the rubber trim is fitted into place, the frame of the door is filthy and there are different parcels behind the seat, etc.

Visible crew/equipment: When in the Whomping Willow, Ron asks, "What's happening?" and Harry replies, "I don't know." After a few other shots, in the next two front close-ups of the boys as they scream, Harry, Ron and Hedwig are not alone in the car. A crew member's HAND is quite visible holding the bottom of Hedwig's cage and in the 2nd close-up is actually laying the cage on its side!! (Visible on DVD fullscreen.)

Continuity: While in the Whomping Willow, the center point of the cracks and spider cracks around it on the car's windshield changes shape and position. In the first shot of the windshield being smashed to four shots later of Harry turning towards the back, with the windshield visible behind him. Regardless of whether more damage occurs to the windshield, the center point of each of the two cracks should be in the same place, which it is not.

Revealing: In the Whomping Willow, the trunk of the car recieves a noticeable gash just above the lock on the trunk as well as a huge dent in the trunk. However just before the trunk pops open to eject Harry and Ron's belongings, it is blatantly apparent that it is not the same car trunk. The gash and dent are both gone, the Ford Anglia nameplate on the right side is gone, the lock is different, the area under the bent fender is different, etc. After the spider escape, though the nameplate is back, the dent and gash are still gone.

Revealing: Harry and Ron's trunks are being thrown out of the car and in the shot just before Harry's close-up, Ron's trunk (the other trunk says HP) slams down on the grass. The top of this trunk has a large perfectly symmetrical hole in the center with four round marks around it, which was probably involved in the throwing somehow. In the wide shot as Hedwig is being tossed out, the trunks are clearly visible and there is no hole in either, nor is there a hole in Ron's trunk at any other time.

Revealing: In the scene where the students are in Professor Lockhart's Defence Against the Dark Arts lesson you see that when Professor Lockhart lets out the Cornish Pixies, two of the pixies pull Neville Longbottom up by his ears and hang him on a chandelier. Because the pixies were computer-animated, they had to put clips behind Neville Longbottom's ears to make it look like he was being lifted up by the pixies. When he was dropped onto the chandelier by the pixies, you see his ears are still in a stretched position where the clips are.

Revealing: During the Quidditch match, just after the close-ups of Snape and Lucius Malfoy, there is a shot of Harry flying towards the camera, coming to stop, with Draco Malfoy flying in beside him and in this shot the goal posts cast a shadow on the sand. Malfoy remarks, "All right there, Scarhead?" and Harry looks down below at the approaching Bludger. Now in this shot, not only do the goal posts have a completely different shadow, there are no hoops at the top of the poles' shadows (while the angle might make them hard to spot, putting everything in a line, the shadows should at least thicken at the top where the hoops are).

Revealing: As Harry chases the Snitch after his arm is broken, he reaches and catches it in the shot facing him. In the next side shot, as he begins to roll over while still balancing on top his broom, the attached foot rest is visible between his thighs. However, when he rolls under his broom then skids to the ground, it is clear that the foot rest is gone. Whether the foot rest is in the open or closed position, it would still be visible either above or below his leg.

Visible crew/equipment: After Harry says, "Rictusempra!" Malfoy is thrown across the room and lands at Snape's feet. Snape grabs Malfoy at the back of his neck and as he pulls him up, Alan Rickman's mark, the green tape, is visible at his feet, as well as Tom Felton's white tape mark at his left foot. Whereas in the earlier shot, when Snape suggests someone from his own house and says, "Malfoy, perhaps," the end of the mat is visibly without any marks. (Not visible in DVD widescreen format)

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

Continuity: In the duel scene between Harry and Draco, Lockhart walks in front of Harry to cast his spell on the snake. Lockhart is standing between Harry and the snake, though when the snake lands, Lockhart is far behind Harry, back in his original position.