Corrected entry: Why doesn't Mary Jane know that Spiderman is Peter Parker? He speaks to her on a number of occasions and even though he's in full costume, his voice is clear as a bell - he doesn't disguise it at all. She'd recognise it from a mile off.
Corrected entry: The whole scene where Peter is testing his web powers by swinging across the road and hitting the billboard on the roof defies the laws of physics no matter how you try to explain it. Peter, the web line and the crane were a pendulum, so if the crane were behind or directly above the sign, Peter would not have lifted back up because he didn't pass under the pivot. If the crane were before the sign, he would up swing but would not have been able to slide down the sign immediately after impact because he would have swung backwards toward the pivot again meaning he'd need to wait until the back-swing reached zero and went in the other direction towards the sign; this would take several seconds.
Corrected entry: The newspaper advert Peter sees is for amateur wrestlers, yet the wrestling shown is in the squared circle of professional wrestling.
Corrected entry: When Peter's auntie enters when his uncle is looking for jobs in the paper, a boom microphone can be seen bobbing up and down at the top of the screen. (seen in the DVD, not in a movie theatre).
Corrected entry: Right before our favorite hero saves the young boy from being crushed at the World Unity Festival, notice the white string on his back. It's really pretty obvious. It's also in the shot right after Spiderman says "Come on, move kid."
Corrected entry: When Peter is learning about his new improved eye-sight, he takes off and puts on his glasses a few times. When he puts them on, the whole screen gets fuzzy, but only what you see through the lenses should be fuzzy, not the area outside the lenses too. (00:17:15)
Corrected entry: When Spiderman has his first swing around NY with his new suit on, you can see the WTC in the reflection in Spiderman's eyes. (Directly after the man in the subway is paying the Spiderman theme song on his guitar) (00:55:45)
Corrected entry: In the wrestlers' cage fight Spider-Man is on his knees, on the mat, when he shoots two webs to the roof of the fight-cage (web length = floor to roof). These he uses to jump over Bone Saw. The webs are never seen hanging in the cage again, even at the end when the cage is wide open. (00:40:30)
Corrected entry: When the students visit the lab with the genetically altered spiders, the female scientist says spiders belong to the Class Aranae. Actually, Aranae is the Family, and spiders belong to either the Class Arachnida or the Class Chelicerata, depending on which classification you use. This is a huge error - 'family' and 'class' are very specific taxonomic terms which no real geneticist would ever mix up or use interchangeably. (00:06:15)
Corrected entry: In the wrestling scene, the cage is ceremoniously locked. As soon as Peter defeats Bonesaw, the cage is raised and the sides separate. How did it get unlocked so fast?
Corrected entry: During the scene on the roof after the Green Goblin knocks Spider-Man out at the bugle, you see the Goblin talking to Spider-Man. When Spider-Man first wakes up and the camera pans to the Goblin, you see him open his yellow eye shields. Then, when the camera shows a close-up of the Goblin talking to Spider-Man, you can clearly see that his eye shields are closed. Then when the Goblin leaves Spider-Man to think about joining him, his eye shields are open and he closes them and takes off.
Corrected entry: When Spider-man jumps on his uncle's car chasing the dude who shot his uncle, Spidey punches through the roof. Later, when the car crashes, there's no more hole.
Corrected entry: When Peter gets out of the car when Ben gives him a lift, we see there is a bit of his costume sticking out under his shirt, but when we see him a second later, the costume can't be seen.
Corrected entry: Peter Parker use a manual focus, manual wind camera throughout the film, yet in the sequence where he photographs himself as spider-man, the camera happily auto-winds and auto-focuses.
Corrected entry: We all know that Peter Parker wears his Spidey suit under his clothes in case of an emergency, that way he can make a quick change. But what about the boots to his Spidey suit? He can't wear them under his shoes because they are too thick and isn't seen holding a big enough bag. So where does he keep them?
Corrected entry: At the beginning of the movie, when Peter is chasing after the school bus you can clearly see a bridge ahead of the bus. But neither the bus, nor Parker, go under the bridge.