Audio problem: As Dr. Ratha says to Dr. Connors, "The clock is ticking, Dr. Connors", his lips do not match what he says and are still moving shortly after he finishes speaking.
Continuity mistake: When Peter asks Flash to stop bullying the other student in the outdoor eating area, right before Flash punches Peter, Peter is carrying his camera on a strap on his right shoulder. As the shot changes to Flash punching Peter, the camera strap disappears before Peter even gets hit and falls to the ground. Later we find Peter's camera smashed on the ground next to his backpack and skateboard.
Continuity mistake: When Peter is told that the thief that killed Uncle Ben has a star tattooed on his left arm, the way the thief steals the money from the cash register is slightly different from the first time we saw him do it. The scene was re-filmed. (00:44:30 - 00:46:40)
Continuity mistake: In the scene at school when Gwen invites Peter to have dinner at her house, Peter initially removes both earphones when Gwen talks to him, but when Gwen asks about the bruise in Peter's eye and the camera angle shifts, the right earphone is still in his ear.
Continuity mistake: Launched by the Lizard, Peter slides on his back through the lab and a small stone lays by his head. A frame later, when the Lizard steps on his arm, the stone is gone.
Continuity mistake: When the Lizard is cornered by the cops at the deli, note the column behind him: First it has 6 bullet holes, then after the shooting it's got 30, then in a brief close-up it's back to 6 holes.
Continuity mistake: When Peter, in his beta-suit, traps the thief, a woman behind, holding a flower bouquet, disappears in the final shot.
Continuity mistake: At the deli, when the cops have shot down the Lizard, watch the back part of the robe, where the bag strap is: It swaps from a big open hole, to being split in two big sizes, to split in a big and a small size hole; all in a matter of frames, no sense whatsoever.
Continuity mistake: In the scene when Peter Parker goes back to his Aunt & Uncles house after his first Spidey-training session, he raids the fridge & freezer. When confronted by his Aunt & Uncle, the freezer door is slowly swinging open, but in the next shot, the freezer door next to his Aunt & Uncle is closed.
Continuity mistake: During the scene where Spider-Man is unmasked he splits an assault rifle in half, trips a man, then drops the two pieces on the ground. The scene switches to a long shot and Spider-Man can be seen still holding the two pieces of the weapon in his hands. The pieces are out of his hands in the immediate following shot. (01:44:50)
Revealing mistake: In the lead up to the final scene, prior to the cranes being in alignment, when Spider-Man is jumping between buildings, he falls down to a fire escape, and you can see that the bars or rails on the railing he lands next to are not made out of metal as they easily move as the actor or stuntperson moves next to them. (01:48:42)
Continuity mistake: When Dr. Ratha is talking to Dr. Connors, Connors says, "I'm at a dead end, it's the decay rate algorithm." In this shot, you can see that his hand is elevated off the desk. In the next shot, it's back down against the desk. (00:21:48)
Continuity mistake: In the subway Peter smacks a guy's head against an iron bar, and he falls backwards. A shot later he is standing straight.
Continuity mistake: In the subway after Peter wakes up and gets stuck on the ceiling his hairstyle changes three times in the following shots.
Continuity mistake: While Captain Stacy is dying Spidey is right next to him with his left arm on him, but in the next shot he is now 1 or 2 feet away.
Continuity mistake: While uncle Ben and Peter talks with Gwen in the school hall, her hands and the folder change positions between shots.
Continuity mistake: Just when Peter tries the web launcher the tables and chairs on the street change number and position through shots: They are arranged parallel to each other and have the following amount of chairs: First table has 3 chairs, second 2, third 1 and fourth 2. In the close-up, all tables have 2 chairs; the first three tables are parallel, yet a fourth one is behind the third table. Peter also knocks down a table or chair which appears standing in the final shot.
Continuity mistake: When Peter is getting the tour at the OSCORP office and talking to Gwen, initially there is a yellow robot behind Peter; in a later shot it has changed to a tank.
Continuity mistake: While Peter is sleeping in the subway he has something on his head as a pillow which suddenly disappears.
Continuity mistake: After the lizard attacks Spidey in the school he left his coat in the bathroom, but when he gets to the sewer he has it back again.
Answer: If you're talking about after the dunk scene, Ben didn't see it as Peter standing up for himself. Instead, he says Peter humiliated Flash and then finds out he's the same one that punched Peter earlier. So in Ben's mind, this was retaliation or retribution, which is not OK.
Bishop73