Just imagine, if ya grab someone and your upper arm is vertical. Your lower arm must be either very long or you must have to elbows to make that hand come out in that position
WER!?!?!?!?!! anyways, this picture is anatomically correct.. they took the pictures of mj AND spidey together, before shopping the background. but they had to take mj and spidey alone, so its impossible for that part of the image to be mis-shopped.
I agree with dann. The arm looks fine to me. The only thing I would say is out of place is Dunst playing MJ. Now that was a mistake... lol
actually I think if her hand was that far away from her.. her shoulder would be at more of an angle where as in the pic.. her arm looks more relaxed..