24Peter's magic lamp - Spider-Man 1
In the scene where Peter is first testing out his powers, he practices shooting webs across his bedroom. He webs up a picture frame, a soda can, and eventually the lamp sitting on his dresser. Instead of pulling the lamp to his hand though, he accidentally pulls it off the
dresser and onto the floor. The lamp shatters with a loud noise, causing a concerned Aunt May to approach Peter's room.
In the next shot, Peter prevents Aunt May from entering and seeing the mess, but the broken lamp can be seen back on his dresser in one piece. Perhaps they shot Peter's conversation with May before the footage of his web-practice. Oops!