When Peter Parker(spider man), gets cut by the razor from the green goblin, he gets cut above his elbow. But When you see him at the table for thanks giving, the cut is moved down below his elbow and facing a different direction. Its easy to notice, I noticed it right away.
Correction - When he gets cut by the green goblin, his cut is below his elbow. When he is at the dinner table, his cut is below his elbow. It is before he sits down for dinner and he is clinging to the ceiling when his cut is above his elbow.
When he gets the cut in the fight,its on the left side of his forearm near the wrist.
In the other two scenes, the cut is in the exact same place. It never was above his elbow.