
Visible crew/equipment: At the Quidditch match, after Hermione sets Snape's cloak on fire and someone shouts, "Fire! You're on fire!" there is a close-up of Harry with his hands gripping the Nimbus 2000. In this shot, the wire rods which are attached/taped to the broomstick, near Harry's fingers, that lead under both of his red sleeves, are entirely visible. (01:21:35)
Chosen answer: Voldemort is not on his head in Diagon Alley as explained in the books. He attaches himself to Quirrell when he learns that Quirrell was unsuccessful in getting the Philosopher's Stone from the vault, in attempt to keep an eye on him.
But in the movie when they met in Diagon Alley, Quirrel refused a handshake because it would kill him.
It's never explained in the movie that that is why he doesn't shake hands. In the books, hagrid says that Quirrel hasn't been right since he met a few vampires in the black forest.
Ssiscool ★